The MCU is great at hiding all sorts of clues in plain sight in just about any and all promotional material, from trailers to tweets. Naturally, this means that even the official movie poster is more than likely hiding some juicy details just waiting to be noticed.
We did our best to comb through every inch of the newly released Avengers: Endgame poster with that in mind, plucking out every possible clue and character angle we could uncover, from the major (what’s going on with Thor?) to the minor (look at Steve using his shield to protect little Rocket) and everything in between.
Source: IGN.com 5 Avengers: Endgame Secrets Hidden in the Poster