George Clooney, Johnny Depp and Zac Efron may be among the brightest stars in Hollywood, but in 2015 they also appeared in some of its biggest movie flops. All three joined Bradley Cooper, Sean Penn and Bill Murray in headlining what Forbes called Hollywood's biggest turkeys of the year, based on the percentage of their budgets they earned back at the theater as of Nov 18, based on data from Box Office Mojo. Only films that opened in more than 2,000 theaters were looked at, and those released in November were excluded from the list.

1. Rock The Kasbah

Poster of Rock the Kasbah. [Photo/Mtime]

Box Office: $2.9 million

Estimated Production Budget: $15 million

Return: 19%

Cast: Bill Murray, Zooey Deschanel, Bruce Willis, Kate Hudson