It looks like Martin Scorsese and Robert De Niro are headed back to the world of the mob. According to Variety, the director and actor are circling a project titled I Heard You Paint Houses, which will be based on a book about a mob assassin who is believed to be involved in the death of Jimmy Hoffa. Paramount Pictures has assigned Steve Zaillian to adapt the screenplay. Scorsese recently completed Shutter Island starring Leonardo DiCaprio and De Niro can be seen this month in What Just Happened? from director Barry Levinson.