If you haven't seen Avengers yet... you need to do so IMMEDIATELY. Not only is it probably the best Marvel movie yet, but the ending is insane and... I'm just gonna stop right there as to not give anything away! Jimmy Kimmel brought back his annual Mean Tweets this week for what might possibly be the best round yet --- with the cast of Avengers: Infinity War, including Scarlett Johannson, Chris Evans, Chadwick Boseman, and many, many more! Check out the clip below and if you've seen Avengers already, let us know what you think of THAT ending... plus let us know which one of the mean tweets was your favorite!