The character of Hank Murphy, the Angels' owner, is loosely based on owner, actor and country music star Gene Autry, right down to the cowboy hat. Autry passed away October 1998. When the Anaheim Angels won the 2002 World Series, they dedicated their win to Autry.
This film was not the only connection between Disney and the Angels. Two years after the film's release, the Walt Disney Corporation bought the Angels, and owned the team until 2003. In addition, Walt Disney was one of the Angels' original board members.
At the time of its production and release, the Angels, who entered the American League in 1961 had never won an AL pennant or appeared in a World Series and were best known for their collapses in the ALCS. The Angels would lose their appearances in 1979, 1982 and 1986. Eight years after the film's release, the Angels won both the franchise's first AL Pennant and World Series championship in 2002.
Two of the actors who played Angels players, Adrien Brody and Matthew McConaughey, would go on to win Academy Awards for Best Actor.
Carney Lansford, who plays Kit "Hit or Die" Kesey from the White Sox, was a baseball player in real life who, in fact, played for the California Angels from 1978-80.