Continuity mistake: When Portnow meets with Bishop at the church, in the first closeup of Bishop's crossword puzzle the word "MUD" is the second word across at the top, and at the center of the puzzle the 4-letter word "GEAR" is written in the 5-letter answer - with the fist space left empty. However, in the next closeup of the puzzle, now the word "ETA" is the second word at the top and "MUD" is the third, and the word "GEARS" has the "S" added, with the letter "G" started properly in the first space of the answer.
Trivia: It was said that Dick Clark was hosting New Year's Eve. You also heard Dick counting down to a 2005 lighting of the ball. In actuality Dick Clark did not host the New Year's Eve Countdown in 2005 year due to being in the hospital from a stroke. Regis Philbin did. Unfair to count this as a mistake as the film was shot in 2004 (released early 2005), so they weren't to know, but worth noting.