It's been long believed that Marvel's "Avengers: Infinity War" would begin filming sometime before the end of year -- possibly even as early as this month -- a timeline seemingly supported by the photo of Josh Brolin's "rehearsal" released in September by directors Joe and Anthony Russo. But is it possible that cameras are already rolling on the ensemble film, and no one has realized it?

Atlanta Filming, the Twitter account of a photographer who's captured images of several Marvel Studios productions, asserts that is indeed the case. In fact, he says, "Avengers: Infinity War" already has been filming for two weeks.

I think I forgot to post this, but #AvengersInfinityWar started filming two weeks ago.

— Atlanta Filming (@AtlantaFilming) November 19, 2016

This is what I know:Some cast is here. Part 1 started on the 7th.Almost 0% chance I will get photos that don't look like lego people.

— Atlanta Filming (@AtlantaFilming) November 19, 2016

Actually, I know a lot more than that. But, no spoilers. The set tile is grey though.

— Atlanta Filming (@AtlantaFilming) November 19, 2016

Of course he doesn't specify which actors are filming, or whether they're on location or at Pinewood Atlanta Studios, where "Guardians of the Galaxy Vol. 2," "Ant-Man," "Captain America: Civil War" and "Spider-Man: Homecoming" were shot. Presumably that's also where reshoots of the "Guardians of the Galaxy" sequel are taking place.

Opening May 4, 2018, "Avengers: Infinity War" features a sprawling ensemble cast that's so far confirmed to include Robert Downey Jr., Mark Ruffalo, Chris Pratt, Jeremy Renner, Benedict Cumberbatch and Brie Larson, among others.

(via Screen Rant)