Saw the DVR version last evening with subtitles commenting on various aspects of the production of the movie. A few things of interest:
Jimmy Dugan was patterned after Jimmy Foxx. Unlike Dugan, former female players recall Foxx as a "perfect gentleman."
The Geena Davis lead role was originally cast with Demi Moore. Later, when Penny Marshall became director, the role went to Debra Winger. Winger bailed after Marshall cast Madonna, indicating she did not care much for "stunt casting" (Winger had apparently trained intensively for two months).
Most of the filming, including the final game of the World Series, was done in Evansville, Indiana. The crowd scenes from the seventh game included all locals wearing period (1944) clothing were shot on Labor Day, with temps around 110.
The actress who played Davis' little sister, was actually a pretty good athlete and on her home run to win the seventh game, you can see her hit the inside of the bases perfectly as she came around.
Tom Hanks is a weenie. He refused to chew tobacco, instead opting for a mixture of tootsie rolls and raisins.
