The Marvel epic saw some huge superhero deaths when Thanos snapped his fingers.
But were they subtly revealed two years previously in Captain America: Civil War?
One Tumblr user has spotted that the Sokovia Accords scene at the Avengers HQ had all the survivors on one side of the table and those who died on the other.
Check out the picture below.
Raider5 writes: “The Avengers in the left survived, while the right side didn’t. Also Tony is sitting far away from the group, just like he’s away from the group in Infinity War.”
It’s true: Falcon, Vision and Wanda died while Cap, Black Widow, War Machine and Tony survived.
And just as the theorist pointed out, Iron Man is in the far left corner.
Could this be signifying him being billions of miles away on the planet Titan, where he was found at the end of Avengers Infinity War?
Speaking to Collider, he said it’ll likely come after the Captain Marvel teaser – which itself will be at the back end of 2018.
He said: “That’ll be after the Captain Marvel teaser probably, announcing that title.
“It’ll be towards the end of the year with however we launch that film.”
Avengers 4 will be released in UK cinemas on April 26, 2019.