Quizmas

I'm very pleased to say that my team won the work Christmas quiz with a ten-point lead. There was only one sports question, which Steven got right. I knew the measurements of a sheet of A4, the composer of "Mars", the film that matched the tagline "A man went looking for America and couldn't find it anywhere", plus a few more. However, we didn't guess the identity of the person whose face has been blanked out of the image above. It's from a film set, but who is the mystery person? Answers on a blip comment...