Battle of the Sexes is a 2017 sports comedy-drama film directed by Valerie Faris and Jonathan Dayton and written by Simon Beaufoy. The plot is loosely based on the 1973 tennis match between Billie Jean King and Bobby Riggs. The film stars Emma Stone and Steve Carell as King and Riggs, leading an ensemble cast including Andrea Riseborough, Elisabeth Shue, Austin Stowell, Bill Pullman, Natalie Morales, Eric Christian Olsen, and Sarah Silverman in supporting roles. The film marks the second collaboration between Carell and Stone after Crazy, Stupid, Love and the second collaboration between Riseborough and Stone after Birdman.

The film had its premiere at the 44th Telluride Film Festival on September 2, 2017, and was theatrically released in the United States by Fox Searchlight Pictures on September 22, 2017. It received positive reviews from critics, who praised the performances of Stone and Carell and the direction, with some calling it the best performance of Stone's career. Despite the positive reviews, the picture performed poorly at the box office, grossing $18 million against a $25 million budget.

At the 75th Golden Globe Awards, Stone and Carell received nominations for Best Actress – Motion Picture Musical or Comedy and Best Actor – Motion Picture Musical or Comedy respectively. Both received Critics Choice Awards nominations in the categories Best Actress in a Comedy and Best Actor in a Comedy. At the 24th Screen Actors Guild Awards, Carell received a nomination for Outstanding Performance by a Male Actor in a Supporting Role.