Bill Murray, Bradley Cooper, and George Clooney starred in some of the least profitable movies of the year

If Forbes' "Hollywood's Biggest Turkeys of 2015" list is any indication, not even an A-list star can guarantee a movie will make money at the box office.

The year's biggest financial flop was Bill Murray's Rock the Kasbah, which features Murray as a "washed-up tour manager [who] finds himself in Kabul trying to turn a young Afghani woman into a TV singing competition winner." The film grossed $2.9 million on an estimated $15 million budget — meaning it made back only 19 percent of the money that it cost to produce.

Murray was far from the only A-lister with a flop on his hands this year. Sean Penn's The Gunman ranks second-least profitable, with only a 27 percent return rate. Also on the list are Chris Hemsworth's Blackhat, Bradley Cooper and Emma Stone's Aloha, and Johnny Depp's Mortdecai:

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These 15 flops aside, 2015 has been a really good year for box office sales. Forbes reports that this year's sales are projected to hit record levels and top $11 billion for the first time in industry history. According to IMDb's estimates, the year's number-one earning movie was Jurassic World, which raked in a whopping $652 million — nearly 225 times Rock the Kasbah's earnings.