Did Tom Holland just make a hilarious mistake, or is he messing with us? The ‘Spider-Man’ star just took to Instragam Live to unbox something he received in the mail from Marvel co-star Mark Ruffalo.

Holland unveils what appears to be the new poster for the upcoming ‘Avengers: Infinity War.’ Holland then pulls out a second piece of paper, which was a personal note from Ruffalo, telling him how excited he is to be working with him on the highly anticipated film. You’ll notice that the paper with the note is marked “confidential.”

Realizing what the paper says, Holland freaks out and turns off the camera. But was this real or staged?

While it is hard to tell whether this video is real or fake, it would not be the first time either actor has let something slip from the Marvel vault. Most recently, Ruffalo accidently left his Instagram Live running for a while during the Hollywood premiere of ‘Thor: Ragnarok.’ There was no video, but the audio could be heard from Hulk’s pocket.

Holland said in a previous interview he was not allowed to read the ‘Avengers: Infinity War’ script at first because he claimed Marvel higher-ups said:

“No, you’re terrible at keeping secrets.”

Watch the new video below and judge for yourself:

 

A little more than an hour after Holland’s video, Marvel officially released the poster (seen above), so if it was a mistake, it was short lived! Of course, Ruffalo couldn’t help but have a little fun with the faux pas:

 

The release of the poster makes for a big day for Marvel fans eagerly awaiting the crossover featuring Thor, Iron Man, Captain America, Hulk, Black Widow, The Guardians of the Galaxy and many more. The studio announced on Tuesday that it will debut the first official public trailer for the film on Wednesday!