VIDEO : Robert Downey Jr. Jokes On Twitter About Captain America's Shield

?Avengers: Endgame? premieres April 26th and fans are very excited to see how the franchise ends. Robert Downey Jr. threw in a bit more excitement by posting a joke on Twitter. The actor shared GIFs of himself, saying that his character, Tony Stark, still has Captain America?s shield. According to Comicbook.com, Downey Jr. said he probably won?t give it back anytime soon. Although Stark and Captain America are on bad terms, the trailers reveal they team up once again.