Anne Hathaway has been accused of turning dodgy ex-boyfriend Raffaello Follieri in to the cops for fear his allegedly fraudulent business dealings may taint her career.

The Devil Wears Prada star is said to have broken up with the Italian businessman earlier this month, shortly before he was arrested on suspicion of fraud.

According to the New York Daily News, Follieri, who has been charged with a dozen counts of federal wire fraud conspiracy and money laundering, is believed to have been outed to the Federal Bureau of Investigation (FBI) by his former flame.

A source tells the newspaper: "It makes sense. She's referred to as his former girlfriend in the indictment even though her spokesman never confirmed they broke up.

“I think that in return for her cooperation, the feds held off on arresting Follieri until she was out of the country."

A spokesperson for Hathaway has declined to comment on Follieri's legal troubles.

The 29-year-old remains behind bars until he can post $21 million (£10.5 million) bail.

A status hearing for Follieri has been set for next month.