Telmo Moreira

Sorry for using only my name initials, I cleared that problem, and thanks for the answer.

I read this interview to George Clooney about Good Night, and Good Luck and he says: "It's funny. We shot it on color film because you can use so much less light. I mean, if you're shooting in black and white, it would take us twice as long to light it." I dont understand this relation beetween B&W/Colour and "more Light"/"Less Light". Can anyone help me?

I'm looking for books/sites about rotoscoping, alpha channel, chroma key and camera tracking . Any help is very appreciated!!