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Gordon takes the Ducks to see an NHL game between two teams that were both relocated a few years after the movie was released. In 1993, a year after the movie, the Minnesota North Stars moved to Texas and became the Dallas Stars, and The Hartford Whalers became the Carolina Hurricanes in 1997. Also, both teams have won the Stanley Cup since their moves: Dallas in 1999, Carolina in 2006.
The team also watches the North Stars game at the Met Center in Bloomington, Minnesota. The Met Center was demolished two years after the movie, in 1994. (The site is now home to an Ikea store. Ikea is in the parking lot of the old Met Center site, but Mall of America is not on the former hockey arena's site at all. It's across the street on the site of the old Met Stadium baseball/football stadium former home to the Twins and Vikings.)
Jake Gyllenhaal, who was unknown at the time, auditioned for the role of Charlie Conway, but his parents wouldn't let him do the movie so the producers ended up casting Joshua Jackson.
Before Emilio Estevez was offered and accepted the role of Gordon Bombay, Charlie Sheen, his brother, was offered the role, but turned it down.
Leonardo DiCaprio auditioned for the part of Charlie Conway but lost out to Joshua Jackson. In similar fashion, Juliette Lewis tried out for the part of Connie, but lost out to Marguerite Moreau.
The original premise of Mighty Ducks was much darker with very little comedy about an ex-NHL player turned alcoholic who seeks revenge on his old coach by coaching opposite him. The main idea stayed when Disney bought the rights to the movie, but some elements were changed (such as Bombay is now a lawyer, who never played in the NHL, who must do community service for a DUI), including much more emphasis on comedy and downplaying most of the adult themes.
Vincent LaRusso wasn't given the role of Adam Banks initially, but later it was given to him when the child who originally played Banks became too difficult to work with.
Basil McRae, Michael Modano: of the Minnesota North Stars (now Dallas Stars) appear, playing themselves.