lake How do you contact Youtube?

Okay, I uploaded this great animated short that won the Oscar (La Maison en Pe Cubes) and it got deleted for copyright infringement. I understand this and will not upload it again, but there are two other copies of the same video on Youtube and they are up on the website and they're doing well. I want to contact Youtube and send them a request asking them to be removed also but I don't know if this is possible, does anyone know how to contact them?there