This isn't a breath-taking slip-up but annoying all the same. When Brendan Fraser and Rachel Weisz (the librarian) are sitting on the boat heading toward the tomb of the Egyptian Priest, Brendan rolls all his guns out on a table and is chatting with the librarian. Watch on the right hand side of the screen next to where the librarian lady is sitting. There are way too many shadows for the two of them. Plus the shadows don't match their bodies. Considering they're supposed to be alone, I'd say this was a slip up.