When Dr. Cross is typing in the password onto the computer near the end of the movie, you actually see the password instead of *******. Just something that kind of bothered me when I watched the movie.
Well, if you think about, maybe the director wanted you to see what password the girl had on her computer. Though in real life it would be in *****, the film wanted you to know what Dr. Cross was thinking the password was. See what I mean? The film wanted to give you a subtle piece of information about the girl by letting you see the password Dr. Cross was thinking of.
So? There are a lot of passwords out there that aren't encrypted as you type them. They probably just wanted to get the movie done, so they had the person who wrote the program go as fast as he could. He just didn't get a chance to throw an encryption algorithm in there.
I just want to say that I agree with Expressions. Also I want to add a slip up for this movie, but the site won't let me, so I hope no one minds that I do it here. In the beginning of the movie, when the first kidnapper strangles the other faculty member in his office, she lies on the floor "dead" with her eyes open. But if you watch closely, when the person busts the door down and starts to walk in the camera briefly pans the "dead" woman's face. The "dead" woman actually blinks. You think they could have redone that scene to get it right.....