i guess it all depends on:
who's movie your watching
what theatre your watching it in
where the theatre is located
when you are watching it
how long the movie is
and why in the world would they keep in the same way all the time anyhow. then it would become boring. so, they made it in the beginning in some, in the middle of some, at the end of some.
by the way, lots of people, namely me, don't even go into the room until the commercials, exuse me "trailers", are done and over with and the movie starts showing. and lots of people, me again, leave before the credits even start to role at the end.
i did that with the restoration of "touch of evil" and didn't even know that "mr. schmiddlin" was the editor or producer of the restoration of the dang thing.
oh well, thanks for all the answers guys!