Ellen DeGeneres is telling execs at Warner Bros. and Telepictures that she wants to leave her talk show. “She feels she can’t go on and the only way to recover her personal brand from this is to shut down the show,” says a source. WarnerMedia has launched an internal investigation into an alleged toxic work environment at the show. Back to the Future star Lea Thompson agreed it was “common knowledge” things were bad behind the scenes. James Corden could replace DeGeneres; insiders say that even before the scandal, he was being eyed as her successor. However, an internal email from executive producers implies DeGeneres is going back to work this month.