I gotta say this before I sign off ....
It's beyond amazing what these computer guys can do to enhance what you see on a movie screen!
I realize that the vast majority of you GetBiggers have never had the opportunity to be on set while they are filming such movies as Promethius, Avatar, Final Destination 5 (?), Planet of the Apes, etc., but all you see is a lot of very professional people standing in and about a sound stage that is completely colored GREEN.
Everything that the film crew does NOT want to appear in the final footage is painted or covered in green, so that only the actors appear on the footage doing their thing is accordance with the script.
Then that footage is 'enhanced' by the computer geniuses who create the scenes in which the alien spacecrafts fly overhead or annihilate the non-leading actors... and all that other super-shit you see on screen.
I think it was "Letters from My Father" that was shot on a sound stage that was 50x50 feet square and the computer guys made it look like it was shot on Tarawa or one of the other Pacific Islands during WWII.
Top rated actors are necessary but I gotta give the real credit for the success of most films to those nerds who do that super impressive computer work.