This is a commonly used filter,

Almost all movies will use it.

Create the effect of wide screen and Anamorphic style flares。

Simulate the anamorphic streak effect.

Rainbow streak, like a rainbow, has many colors.

Create a colorful flare wiredrawing effect.

4 strengths: 1 mm (strongest effect), 2 mm, 3 mm and 4 mm (most subtle effect).