Michael Barnathan is an American film producer who has produced and executive-produced films such as Used People, The Help, the first three Harry Potter films, Rent, Cheaper by the Dozen, and Night at the Museum. He was also a producer for the 2010 film adaptation Percy Jackson & the Olympians: The Lightning Thief and 2013 Percy Jackson: Sea of Monsters, based on the novels by Rick Riordan. Barna...
