Trivia: Renee Zellweger's reaction to Jim Carrey's rapid counting was real because Carrey ad-libbed the line. In this scene, Carrey suddenly says, "On nine," and quickly counts to nine, completely surprising Zellweger.
Trivia: At the end of the movie, Charlie walks by a patrol officer and calls him Seabass. Cam Neely, the actor of the patrol officer, also played Seabass in Dumb and Dumber. Both movies are set in Rhode Island.
Trivia: When Irene is looking out the window in the motel Charlie was staying, if you look at the room at the back wall, you'll notice a watermelon. This was from a previous uncut scene that wasn't deleted out.
Trivia: When Jim Carrey does the cotton mouth face after he take the pills, the face looks a lot like the Fire Marshell Bill face.
Trivia: Jim Carrey is the father to three grown black sons. This is probably a nod to Andy Kaufman (who Carrey would later play in "Man On The Moon"). Kaufman also had a bit where he would introduce the audience to his family, and then present his "sons," three grown black men.
Trivia: Director Bobby Farrelly plays the voice of the priest who talks with Jim Carrey, and his brother Peter Farrelly makes the noises of the cow on the road.
Answer: It's called 'The world ain't slowing down' by Paul Ellis.