There is a particular scene in I, Robot that raises an interesting issue. Will Smith is telling the story of how he lost his arm. He was in a car accident, and found himself and a young girl underwater, about to drown. Will was saved by a robot that was passing by. The reason given as to why the robot saved Will and not the girl was that, statistically speaking, Will's chances for survival were higher than the girl's. That makes sense, as a robot would make decisions based on statistical probability. But there is a problem: In the flashback, we clearly hear Will's character shout, "Save the girl!" to the robot. That was a direct order from a human to a robot.

At first I thought that this was not a violation of the 2nd law because if the robot had obeyed Will's order, then Will would have died. The 2nd law of robotics cannot override the 1st law. But the problem with this is that, if a Sophie's choice type situation counts as breaking the 1st law of robotics, then an emergency robot would never be able to perform triage (as the robot that saved Will clearly did). If choosing to save one human counts as harming another human, then a robot would not be able to effectively operate in an emergency such as this.

All this leads to my question:
Did this robot break the 2nd law of robotics, or is there some nuanced interpretation of the laws that could explain its behaviour?