thank you.
but i already know how to do this, its not the effect im looking for, but i didn’t really explain what im looking for so thanks for trying, i don’t want to blur them together i want to ‘blend’ them together so it looks as if its one shot for instance:
actor 1 throws a knife at actor 2 and it gets stuck on his face.
so to film this i would use one shot (shot A) of actor 1 ‘throwing’ the knife at actor 2 and another shot (shot B) of actor 2 with a knife stuck in his head.
so to make it look real i would ‘blend’ the two shots together to make it look like one shot.
sorry for not fully explaining things in the original post,
thanks again alon
p.s.if this technique is done the same way as simon bonner posted then my apologies to simon bonner