Will the “feud’’ between Matt Damon and Jimmy Kimmel ever end? Not when Damon has a movie to promote and Kimmel is hosting the Oscars next Sunday. Damon stopped by “The Ellen Degeneres Show’’ last week to promote his new film “The Great Wall.’’ Besides talking about the film and the 700 hair extensions he had for his role, Damon made sure to land some jabs at his frenemy. “So Jimmy Kimmel is hosting,’’ Degeneres said. “Is that good or bad for you?’’ “It’s horrible for everybody,’’ Damon replied. “Sorry, just being honest. Probably bad for me too, but I mean, bad for America.’’ Degeneres defended her fellow talk-show host, noting that running awards shows can be tough. “You know he’s really anxious about it,’’ she said. “He should be,’’ Damon joked. “There’s going to be hundreds of millions of people watching. . . . I’m going to be there a few rows deep hoping that he messes up. I may even throw things at him.’’ (Kevin Slane, Boston.com)