I'm currently shooting a short film and am completely new to After Effects. I have a scene that takes place in a movie theater, while a film is being screened. No film will really be screened during the shooting, and I would like to create some artificial flashes of light on the seats from the screen, in order to simulate this.
My shot is something like the photo attached.
Does anyone know a tutorial that can help with this, or can give some basic instructions on this for a total newbie?
Thanks a lot guys!