How to use RunwayML Gen-4 to make absolutely cinematic AI videos

RunwayML Gen-4 has truly turned all the old concepts of AI video creation upside down. In the past, when mentioning “AI-generated videos”, many people still imagined jerky clips, unnatural movements, or distorted images. But with Gen-4, all those concepts are challenged.

In this article, let's explore with RankMarket how to use RunwayML Gen-4 to create cinematic AI footage—from understanding how the tool works, how to write effective prompts, to how to “move” the camera in an engaging way.

What is RunwayML Gen-4? Why does RunwayML Gen-4 represent a significant advancement in the creation of AI videos?

Thinking back to the early days, when just a simple prompt was all it took, RunwayML Gen-4 allowed us to create an AI video with just a few clicks. But what impressed me most was the ability to “control the camera” almost like you were holding a real camera: you can lock it in place, move it slowly, and also rotate it horizontally, tilt it up, tilt it down. Thanks to that, Gen-4 does not only stop at “perspective” but also helps us “direct” the scenes.

With just a prompt starting with a phrase like “Locked camera” or “Camera zoom in slowly”, you can convey to AI Gen-4 how you want the frame to happen. It’s no longer a matter of typing a few words and waiting for the result, but rather a brief script: “Move the camera slowly closer to the character’s face, the light reflecting off the weapon you’re holding,” or “Turn the camera around as if you’re walking on a beach at sunset.”

Compared to Gen-3, Gen-4 comes with an improved prompt system, allowing the AI ​​to “understand” better what we want to create: not just “a scene with people,” but “a still, low-angle shot of the character’s feet walking slowly through a dense forest at dawn.” That’s why Gen-4 is being called a “leap forward” in the field of AI filmmaking by experts.

Steps to Create Cinematic AI Videos with Runway Gen-4

Step 1: Start With a Static Shot

When you’re first starting out, you might think static shots are boring. But static shots are your secret weapon for creating tension, or for emphasizing a key moment. Imagine you’re shooting a sci-fi scene, with aliens crawling slowly across a desolate landscape. A locked camera, no shake, no wobble — just a still frame. The ominous, creepy feeling will immediately spread: the viewer will wonder what is going to happen, will the creature suddenly attack?

On the RunwayML interface, you just need to type:

Locked cameras. White alien creature crawls on astronaut's suit.

The semantic order is extremely important. “Locked camera” is at the beginning of the prompt to indicate that you want the camera to be still. The following words describe the actions of the character or the environment. Gen-4 “reads” the prompts in the correct order: if you write “The creature blinks and then turns its head”, the footage will show the creature blinking first, then turning its head. If you flip it to “turn your head and then blink,” the AI ​​will frame the scene in that order.

Why are static shots important?

• Create tension, build climax: When the camera is not moving, the viewer's psychology will be more tense, especially when unexpected actions occur in the frame (like a creature approaching).
• Emphasize emotions: A fixed, close-up shot that only shows someone's eyes blinking or a tear rolling down a cheek has more weight than a shaking camera shot.

However, to avoid a “stiff” feeling, you should add a few environmental elements, such as:

Locked cameras. A white alien creature crawled on the astronaut's suit, the wind blew through the sand creating hazy dust.

Incorporating air movement or small character movements makes the viewer even more focused on the main focus: the alien.

Step 2: “Dollying” Shot: Moving Closer to Create Expectations

If stillness is an indirect way to build tension, then “dollying” is the most direct way to “bring the audience closer to the character”. Imagine an interrogation scene: a pale yellow light bulb shines down on the face of the person being questioned, the shadows are standing and looming, creating a sense of mystery. In the midst of the silence, the camera slowly moves closer to the man, making the viewer’s breathing gradually become heavier.

The dolly-style “Zoom in” will give the viewer the feeling of “falling into” the character’s space, making them sympathize or tense with him. In RunwayML, to create this scene, type prompt:

The camera zooms in slowly to the interrogated man, a yellow light shining obliquely across his face, a faint smoky glow in the frame.

If you want to be faster, just add the word “quickly” or “fast”:

Camera quickly zooms in on the bishop's cross as centerpiece, light flickering from candles.

In just a few seconds, the AI ​​will give you a shot from a distance, then gradually move closer to the cross that the bishop is holding.

An important note: Gen-4 does not always give the desired results on the first try. Sometimes, you have to try several similar prompts to adjust the speed and angle. For example, if the “Camera pulls back” prompt is not looking good, you can use post-production tools (like Adobe Premiere, DaVinci Resolve) to create a manual pull back feeling by setting a keyframe: zoom in on the clip at the beginning, then gradually shrink back to the actual size at the end. This will give you a smooth pull back, avoiding the AI ​​sometimes “shifting” back erratically.

Step 3: Pan & Tilt: Rotate the Scene to Tell a Story

Pan and Tilt are two basic movements that help “explore” the world in the frame. Not just simply moving the perspective, when you tell the AI ​​“Camera glides right to follow the horseback rider”, the audience will feel like they are riding the horse, the wind howling in their ears, the sand dunes blurred.

3.1. Horizontal Pan

Let’s say you have a scene of a group of pirates patrolling the deck. You can prompt:

Camera glides right to follow the pirate captain as he strides forward

The camera then moves from left to right, as if you were standing at a corner of the deck and moving sideways to keep up with the scene.

In particular, when you want to create a “whip pan” (sudden fast rotation), AI Gen-4 does not yet support it directly. Instead, you can do post-production: for two consecutive static clips (clip A filming character 1, clip B filming character 2), then insert the “whip pan” transition available in CapCut or Premiere. The result is that the audience will feel “shocked” when the camera suddenly sweeps over the two characters, creating a dramatic, energetic moment.

3.2. Vertical Tilt

Tilt allows you to “look up” or “look down” at your subject. For example, this ancient church scene:

Camera tilts up to reveal the high vaulted ceiling with stained glass windows

The AI ​​will start from a low level plot (perhaps the altar), then slowly tilt the camera up, revealing the magnificent ceiling. If you want to feel “down”, prompt:

Camera tilts down to show the car tire as it rolls over the spilled red wine, the headlights spilling on the road.

Result: the camera will start from a high angle, then gradually move down to the level of the tire, creating a “chasing” feeling or highlighting details.

What’s special about Gen-4 is that you don’t have to prompt for every movement. If you let the character move on its own (for example: prompt “Emperor stands up from his throne”), the camera will automatically “follow the trend” of the movement: when the character stands up, the camera will follow that direction, creating a smooth tilt up. Sometimes just prompting the character’s movement, the camera will know to move to keep the subject in the frame.

When Should AI “Write the Script” and When Should It “Run Prompt”?

There is an obvious mistake among beginners: thinking that Gen-4 AI will “outline” the details like a movie script. In fact, you have to give the AI ​​a very clear prompt script.

• If you just write “Create a cinematic scene”, the AI ​​will “go astray” very quickly, possibly giving you a scene in a forest, a scene in outer space, or a group of dancing kids—all of which are “out of character” for what you want.
• On the other hand, if you write very specifically: “Camera zooms in slowly on a lone samurai standing on a misty mountain peak, the wind blows away the hem of his dress, the dawn breaks,” the AI ​​will get every detail right.

So, take the time before the prompt to “script” briefly in your head:

1. The establishing shot: You want to start with an angle wide, close-up, or medium angle?
2. Main camera movement: Is it zoom in, dolly out, pan, tilt, arc, or a combination?
3. Subject & action: What is the main character doing? What is the environment like?
4. Secondary details: Smoke, light, dust, weather effects (rain, fog, snow)…
5. Secondary angles: After you've shot the main angle, do you want to cut to a close-up, close-up, or bird's eye view?

Once you've got these elements down, just put them together into a coherent prompt. Remember not to cram too many details into one sentence, making the prompt too long and confusing. If you want, you can split it into several short prompts, produce each video segment, and then combine them in post-production to create a complete film.

Some Tips When Working With Runway Gen-4

It sounds complicated, but in fact, once you get used to writing prompts and understand each motion, creating AI cinematic frames will become extremely interesting. Here are some tips I learned after dozens of hours of “playing” with Gen-4:

1. Start slow: Always try with “slowly”, “in slow motion” prompts to give the AI ​​time to process each frame. Once you have a smooth video, you can speed up post-production if you want.
2. Split the prompts: If the prompts are too long, Gen-4 can easily “lose” the idea. Instead, break it into short snippets, then combine them in the video editor.
3. Upscale images: Always upload high-resolution reference images (at least 2K) so the AI ​​has more pixels to work with. If you only have 720p, upscale before uploading.
4. Pay attention to lighting: Gen-4 is very sensitive to words that describe light. Be specific about “sunset sunlight,” “neon purple,” “candlelight flicker”—this will help the AI ​​show more accurate colors and shadows.
5. Incorporate post-production when necessary: Not everything the AI ​​does is perfect. Be prepared to export your video from Runway, then use Premiere/DaVinci/Rush to edit, crop, add audio, and transition. Proper post-production will elevate your work.
6. Save the prompt: When you have a prompt that creates a scene you like, save it. You can reuse it, modifying it to fit another scenario. This saves time and helps you build your own library of prompts, serving many future projects.

Conclusion

At this point, you should have a big picture of how to use RunwayML Gen-4 to create cinematic AI videos.

The key is to start small: a simple prompt, a still shot, a slow-motion shot. Then you will be more confident to add complex elements, experiment many times, edit post-production, and finally create your own AI work with a unique style.

Good luck, and RankMarket looks forward to enjoying unique AI cinematic works from your own creative hands and minds!

References:

• https://help.runwayml.com/hc/en-us/articles/37327109429011-Creating-with-Gen-4-Video
• https://youtu.be/D4tzDHwDkhE