Ever since the release of the third film in The Avengers franchise, fans have begun to speculate over what the plot for the next movie could be. After speculations ignited over the title earlier this year, directors of the film have taken to Twitter with a cryptic clue.

As expected, fanatics of The Avengers franchise went into a frenzy after the Russo Brothers posted a photo of the film set. Captioned with “Look hard…”, the relatively standard-looking set presumably holds clues to the next movie, with the photo featuring Joe Russo working on his laptop.

Twitter users began to explain their theories following the post with one person, Erik Matthews pointing out the object on the left, which is originally seen in Avengers: Infinity War. With what it means for the rest of the film remains a mystery. Avengers 4 is set to hit theatres on May 3, 2019.

Have a look below and stay tuned for details in the coming months.

Cover image: Marvel