During filming in 2002, Matthew Perry spent some time in rehab because of his addiction to prescription painkillers. Production was slowed, but during his absence the filmmakers focused on filming scenes without him in them.
The outfit that Sara Moore wears throughout the second half was actually chosen by Elizabeth Hurley. The director liked it so much, he decided that would be her costume.
Matthew Perry improvised a great deal of Joe's witty sarcastic comments.
Matthew Perry shot the scene where Joe is running from Tony, who is driving a monster truck, with a broken foot. According to director Reggie Hudlin, he would have been run over if he had stumbled.
The hotel from which Joe picks up Sara in the yellow cab is Dallas' famous Rosewood Mansion on Turtle Creek.