Deliberate mistake: During the finale of "One," near the end of the number when the entire cast and all of the extras, dressed in gold lame tuxedos, are doing the last kick line before the credits, one of the dancers (second row, third from the right) falls down and gets right back up again. While this mistake wasn't "deliberate" as such, it was probably simply prohibitive to film the entire kick line over again for the sake of the one fall that is barely noticeable, so was deliberately left in.