How do you create this effect?

[Chris Tompkins]

Burnt film plug-in.
There are several of them around.
FCP.
After Effects.
Motion.

All can do this.

Chris Tompkins
Video Atlanta LLC

[Mark Suszko]

You can also buy it as stock footage from Artbeats and the like, nd composite it in. You can make it from scratch, but it’s work. What you’re seeing is how film looks when light leaks in and over-exposes a section of the film inside the camera or inside a super-8 film cartridge.

[Anthony Bari jr.]

You can create this effect by shooting blurry light and increasing the contrast and playing with composite modes.

or…… you can purchase LightFX per clip, not so pricey either.

https://www.lucavisualfx.com/clips.htm

These all blend together as well to create more complex FX.
Enjoy.

*Production*Post-Production*
Apple Certified Instructor (Final Cut Pro 7)
“Semper Fi USMC”