[Tim Kloske]

Change the mode from 8bpc to 32bpc, and create a pale orange (pure orange won’t work as well… add a bit of white to the orange), and add exposure and gaussian blur… then create a mask in the shape of a circle for the orange layer. You will get a similar effect to those light leaks. You will have to animate them yourself, perhaps using Mercury still… but it will give you the exposure look