Monday, November 10, 2025

I Accidentally Made a Movie Trailer with My Phone and a Free AI

I’m sitting on my couch in sweatpants, phone in one hand, cold pizza in the other, when my game’s hero finally *moves*. Not in Unity, not in Blender—just in a 10-second clip that rendered while I microwaved dinner.


His name is Sir Jax. He’s a 512×512 pixel knight I drew last year. Until tonight, he was frozen in a PNG. Then **[wanvideoai.org](https://wanvideoai.org/)** happened.


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### The Setup (or Lack Thereof)


I needed a trailer for *Shadow Sprint* before Friday’s itch.io launch. Budget: $0. Time: 3 hours before bed. Skills: Can draw, can’t animate.


I opened Safari on my phone, went to **[wanvideoai.org/models/video/wan-animate](https://wanvideoai.org/models/video/wan-animate)**, and did this:


1. Uploaded Sir Jax (PNG from my camera roll)  

2. Picked a random parkour video from YouTube (screen-recorded 5 seconds)  

3. Tapped **Generate**


One minute later—*one minute*—I had a 720p clip of Sir Jax sprinting across rooftops. His cape caught the wind. His sword scraped sparks on landing. The phone speaker even played faint *clank-clank* footsteps.


I dropped the pizza.


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### The “Wait, That Was Too Easy” Moment


Still skeptical, I tried their **[Wan 2.5 model](https://wanvideoai.org/models/video/wan-2-5)** for the opener. Typed on my phone’s keyboard:


> “Golden hour cyberpunk city, wet pavement, low-angle hero leap, slow-mo, dust in sunlight, cinematic”


Four minutes of cloud render. Result: 1080p, 10 seconds, with *rain sounds* and a moody synth I didn’t add. It just… knew.


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### The Fine Print (Because Nothing’s Perfect)


- Free tier = 3 watermarked clips/day  

- Garbage input = garbage output (blurry ref = blurry knight)  

- Max 10 seconds per clip (stitch them in CapCut if you need longer)  

- Multi-character chaos can confuse it  


But for a solo dev with a deadline and a dying laptop? This is *cheating* in the best way.


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### Your 60-Second Challenge


1. Open **[wanvideoai.org](https://wanvideoai.org/)** on your phone  

2. Pick **Wan Animate**  

3. Upload *any* character + *any* movement clip  

4. Post your result in the comments—I’ll retweet the wildest one


No GPU. No excuses. Just a browser and a dream.


Sir Jax’s trailer goes live Friday. I’ll share the link when it’s up.


*Not sponsored. Just a dev who ate cold pizza and still shipped.*

I Accidentally Made a Movie Trailer with My Phone and a Free AI

I’m sitting on my couch in sweatpants, phone in one hand, cold pizza in the other, when my game’s hero finally *moves*. Not in Unity, not in...