When Avengers: Infinity War and its currently untitled sequel were announced, speculation began immediately as to the size of the films' casts. Both movies have been described as the culmination of the Marvel Cinematic Universe to this point, and Marvel Studios does not appear to be holding back. Outside of the obvious appearances of the mainstay members of the Avengers, seemingly every single character to ever be in the MCU has been linked to the films.

Tom Holland recently confirmed Spider-Man will be involved, but one of the most exciting additions to the cast has been the inclusion of the Guardians of the Galaxy cast. Star-Lord, Groot, Rocket, Drax, and Gamora have all been confirmed to appear, as has Nebula, following her joining the team in Guardians of the Galaxy Vol. 2. Now, another new team member appears to be teasing her involvement in the epic crossover.

Pom Klementieff is set to make her debut as Mantis in Guardians 2 as a helper to Kurt Russell's Ego the Living Planet, though it is reported she will also join the Guardians team at some point during the film. Klementieff took to Instagram to tease Mantis' return in Infinity War by posting the cover of The Avengers #123, with the location tagged to Atlanta, Georgia.

This tease comes on the heels of a confirmation that filming on the two films begins very soon. It also looks as though the Guardians themselves may well be involved in the first day of filming, as Dave Bautista mentioned on social media that he is present for the start of production. As such, Klementieff may be joining her co-star to start work on the film. If the Guardians are set to be the first to report to set, it will be interesting to see if any other characters not normally associated with the space-faring franchise show up to lend a hand in the incoming battle against Thanos. Given that Guardians has characters directly related to the Infinity War antagonist, it makes sense for them to be the first to encounter him -- or at least to kick off the plot. Does this mean, then, that, at the start of filming anyway, Infinity War plans to shoot chronologically? That has yet to be established, but eagle-eyed fans might be able to piece that together by recalling who was first to Pinewood Studios when the film kicked off.

While it is indeed good news for fans that Infinity War is set to begin filming tomorrow in Atlanta, it's even more interesting when you consider that Black Panther recentlyy commenced its production in the same location. Marvel has never filmed two films there at the same time, so hopefully this will be a proof of concept that the studio can ramp up production on its blockbuster films without them impacting one another.

Source: Pom Klementieff