Robert Downey Jr. considers Kiss Kiss Bang Bang “the best film I’ve ever done,” and it led to his famous Marvel casting. Robert Downey Jr. has starred in numerous movies throughout his career, yet Kiss Kiss Bang Bang stands out for the Academy Award winner. Released in 2005 as Shane Black’s directorial debut, the neo-noir black comedy crime film follows thief Harry Lockhart (Downey) as he accidentally auditions for a movie role that lands him in the middle of a murder investigation in LA with an investigator known as Gay Perry (Val Kilmer).