Is it true that is the movie a league of their own true based on the following text?

A League of Their Own is a 1992 American sports comedy-drama film that tells a fictionalized account of the real-life All-American Girls Professional Baseball League (AAGPBL). Directed by Penny Marshall, the film stars Geena Davis, Tom Hanks, Madonna, Rosie O'Donnell, and Lori Petty. The screenplay was written by Lowell Ganz and Babaloo Mandel from a story by Kelly Candaele and Kim Wilson.
no