I hope this is the right section. New to filming, I'm trying to shoot a simple music video and my idea was to shoot a bench on a street in timelapse. Then I wanted to leave the camera set up in the same spot and film the artist performing on the bench. My idea was to have the background timelapse going fast while the artist is performing in regular speed at the same time. Can I achieve this by simply layering the images over each and playing with opacity? Or is that going to look bad? Is my only other option doing a green screen behind the bench?