Trivia: This isn't really a mistake, but it is pretty humorous. When Hamilton and Meg enter the airport with their dog, a "No Dogs Allowed" sticker can be seen on the sliding door.
Trivia: The producer, Luc Besson, makes a cameo appearance as the man whose boat is destroyed by the stray missile. (00:37:35)
Trivia: Location filming in Calgary's Mount Royal neighbourhood was disrupted when two bank robbers crashed their getaway car into the set. They hit a fake police van and were soon surrounded by over a dozen men and women in uniform. They surrendered only to find out later that they had surrendered to extras. (The real police showed up soon afterwards.)
Trivia: The movie is supposed to be in Washington D.C. Starting with the 1997 season, Washington moved from RFK stadium in DC to a stadium in Landover, MD. So the movie was filmed in Baltimore, MD. They used Camden Yards, Orioles stadium, and the stadium where the Ravens play.
Trivia: Towards the end of the movie, when Coco is stomping out of the church and Angelica rips her dress by stepping on it, everyone laughs and takes pictures. This exact same incident happened in the same way in the movie "It Takes Two".
Trivia: At one stage in the movie, Billy and his dance teacher travel across the Transporter Bridge, the only working cradle bridge in the world, which crosses the River Tees from Middlesbrough to Port Clarence, Stockton-on-Tees. At the time of the Miners Strike in 1984, when the film is set, neither Middlesbrough nor Stockton-on-Tees had an active coal field. Whilst the Transporter Bridge, now a grade 2 listed structure, is still working, it is not really a regularly used entry or exit use from Teesside, if Billy and his teacher were going to an audition. Which raises the question as to why they were on the bridge, apart from giving the director the chance to show off a spectacular structure.
Trivia: Although Piper Perabo was able to sing for her character, it was decided that LeAnn Rimes would provide Violet's singing voice, albeit with a deliberate deviation from her natural vocal range. This means that during LeAnn's cameo in the movie, she is effectively duetting with herself.
Trivia: Daniel von Bargen plays Bruce Willis' father in the movie, even though in real life he's only five years older than Willis.
Trivia: The day John F. Kennedy was assassinated (11/22/63), school was let out early. When Maurey and Sam got to her house, it was 12:05 on the wall clock. When Sam went home, it was 12:25 PM. This makes it appear as though they knew about the assassination before it happened (around 12:30 PM), but Dallas falls under Central Standard Time (CST) and the movie is set in Wyoming, which is Mountain Standard Time (MST) or one hour behind CST. That is, 12 PM in Wyoming would be 1 PM in Dallas, Texas.