Character mistake: After Charlie and Irene leave the Rhode Island station for New York, the female officer refers to her boss as Captain, when he is a Colonel.
Character mistake: Throughout the movie, Carrey's Commanding Officer, who is a Colonel, is called Captain.
Character mistake: When Charlie leaves with Irene, the woman asks "but Captain, policework is Charlie's..." The man she is talking to is a Colonel.
Character mistake: Shonte Jr. says he can't figure out of the atomic mass of a deuteron. He is supposedly a genius, but this is chemistry 101. Average people might not know how to calculate atomic mass, but a genius would not make a beginning level error like this.