Photo Coverage: Check Out the Cast of Marvel's AVENGERS: INFINITY WAR at the London Fan Event

Tom Holland, Elizabeth Olsen, Tom Hiddleston, Sebastian Stan, Benedict Cumberbatch, & More attend a fan event in London to promote the upcoming Marvel Studios' AVENGERS: INFINITY WAR.

An unprecedented cinematic journey ten years in the making and spanning the entire Marvel Cinematic Universe, Marvel Studios' "Avengers: Infinity War" brings to the screen the ultimate, deadliest showdown of all time. The Avengers and their Super Hero allies must be willing to sacrifice all in an attempt to defeat the powerful Thanos before his blitz of devastation and ruin puts an end to the universe.

Anthony and Joe Russo direct the film, which is produced by Kevin Feige. Louis D'Esposito, Victoria Alonso, Michael Grillo and Stan Lee are the executive producers. Christopher Markus & Stephen McFeely wrote the screenplay.

Marvel Studios' AVENGERS: INFINITY WAR opens in U.S. theaters on April 27.