At the start of the movie, James Bond has to break into the military base inside the dam. To do this, he cuts into the metal with a laser. However, if you look closely, the laser is not aligned with where the cut is taking place. Oops.
Yeah, it's definitely clear that the metal was being cut from the other side, and James' gun was just a light. You'd think they would do that shot better, or just not make it a close-up.