Instagram has long been the birthplace of global internet culture--whether it’s VSCO girls, photo dumps, GRWM (Get Ready With Me) videos, or the now-classic “Day in My Life” reels. From ChatGPT’s Ghibli-inspired trend that flooded feeds with AI-generated animations to Gemini’s quirky Nano Banana AI moment, every few months a new trend takes over.

This September, the spotlight is on the “thinnest video” trend--shot in a striking 5120×1080 ultra-wide cinematic strip.

What exactly is ‘thinnest video’ trend?

Imagine scrolling and suddenly seeing a reel that looks like a sleek panoramic movie strip instead of the usual frame. That’s the trend in action. Creators cut off the top and bottom of normal videos, leaving behind a slim, cinematic bar across the screen. The result? Old footage feels

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