It was supreme-ly odd.  Timothee Chalamet claims that one of the background extras on “Marty Supreme” threatened him during one specifically intense scene. “I won’t say who, but in that motel sequence, there are a lot of non-actors…that I find it really thrilling to work with, but sometimes it would take multiple takes to really get something out of them,” Chalamet, 30, said during a Q&A with Robert Downey Jr., 60, on Wednesday. “And I’m really getting in the guy’s face and I’m really trying to