Continuity mistake: When Billie Jean hits the winning shot against Bobby Riggs, she is inside the square closest to the net. However, when she throws her racket in the air in victory a second later she has moved outside the box, close to the center of the court.
Battle of the Sexes (2017)
1 mistake - chronological order
Directed by: Jonathan Dayton, Valerie Faris
Starring: Steve Carell, Emma Stone, Elisabeth Shue, Andrea Riseborough, Natalie Morales
Bobby Riggs: No offense. You're still a feminist, right?
Billie Jean King: No, I'm a tennis player who happens to be a woman.