Trivia: Mystique transforms into a blonde woman to seduce the security guard. This blonde woman is actually the normal appearance of Rebecca Romijn-Stamos, who plays Mystique. It's the only time we see her without the blue makeup until she's depowered in X-Men 3.
Trivia: Stan Lee makes a cameo appearance in the beginning of the movie when Jean is being recruited and showing off her powers. He is the man holding a hosepipe. (00:02:50)