how to put a face on a moving body in a movie ????

Answer 1

I didn't know the guys at ILM used Yahoo Answers!!

Heh, seriously though you probably want to use something like After Effects Motion Tracking... thats the only commercial software I can think of that does it. Everything else is very high-level industry stuff... requires specialized equipment and actually knowing what the heck you're doing when you shot the stuff in the first place.

Answer 2

It takes awhile. . .you will have to put the picture of the face in each frame. . .that's why you hardly see any things done like that perfectly