How do i use a green screen costume in a movie. Ok so i am wanting to make a paranormal movie. Not like paranormal activity it will be more like an investigation with a team. But i need a couple of green screen costuems. How do i use them the way i want. Which is, I want my characters to be sitting there watching something then something will fly accross the room But i want my green screen costume person to through it. It will be shot in a house. And i would like to use them to where it looks like someone is getting picked up and thrown. How do i use the green screen costume to give that effect. Do i need any kind of special effects software. Or visual or editing software for that. If so please let me know what i would need to do so.