Audio problem: When Cole and Railly discover the twelve monkeys symbol on the walls, Cole grabs Railly's arm and shouts "Hey!" twice, but his lips don't move the second time. (00:57:45)
Audio problem: Just after Goines is talking about germs, he says he can get help Cole get out. Cole then says "You know how to get out of here?", but his lips say something else.
Answer: The tattoo is for the movie. It is his prisoner identification.