Avengers: Infinity War

The latest film from the Marvel Universe, 'Avengers: Infinity War' promises to be the biggest and boldest of the franchise, bringing together all of the Marvel characters into one all-encompassing story.

As such, the film is shrouded in secrecy, with only a handful of people familiar with the actual plot. The Russo Brothers, using the hashtag "#ThanosDemandsYourSilence" posted a letter on their Twitter account encouraging fans not to spoil the film for others.

"We will not screen the film in its entirety until the Los Angeles premier shortly before the fim's global release."