John Shearer, Associated Press
Kristen Bell attends the world premiere of "Frozen", on Tuesday, Nov. 19, 2013, in Los Angeles. A new study has shown that movies featuring women in starring roles do better at the box office.

Casting women in lead roles may be the key to box office success.

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BBC News recently reported on a study by FiveThirtyEight, which found movies that have women in leading roles tend to do better in the box office — earning a return of $2.68 for every $1 of production. Films that don’t have women in the starring roles return about $2.45, BBC news reported.

"We found no evidence in the data to support the idea that films with women perform any worse at the box office than films without them," wrote the study’s author Walt Hickey.

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