Impossible Movie Stunts?

ThousandStars asks: "After watching Spider-Man, I noticed some miraculous physics like Spider-Man falling faster than a girl to save her and the girl catching the cable car at the end. It reminded me of a list of 12 problems with the plot and science of Independence Day, which brings me to my question: What are the most implausible, impossible and sheerly rediculous science-related things you have seen in movies?"