Joe and Anthony Russo must love to torture their fans. The talented sibling directorial team helmed Captain America: Winter Soldier, Civil War, and Avengers: Infinity War, and now they are working on reshoots and edits for Avengers 4. The still-untitled film is the most anticipated movie of all time at this point, with fans are eager for any morsel of information they can attain about the plot.

After Thanos snapped away half of life in the universe, the Avengers were left with only a portion of the team. To be fair though, all original members (Iron Man, Captain America, Thor, Black Widow, Hawkeye, and Hulk) survived the snap, which has led many fans to dig deeper into the time traveling concept. The Russo brothers took to their Instagram to tease the upcoming Avengers 4 movie, and fans believe there is a hint to the film's title in the picture. To be fair, the Russo brothers did write a caption that says "Look hard," prompting the online madness. 

In the picture, Joe Russo sits in a chair while working on his laptop. The black and white pic was taken on the Avengers set, but simple screening and BTS props are the only things to be seen in the shot. At least, that's what it looks like at first glance. Check out some of the insane fan theories below.