Stan Lee -- X-ecutes Greatest Superhero Selfie ... Ever

There's only one man who could bring Wolverine, Gambit, Deadpool and Magneto together for one EPIC SELFIE -- Stan Lee ... and TMZ has video of Marvel's finest assembling for the iconic shot.

It all went down at Comic Con -- where the following people joined the comic book legend on stage:

-- Hugh Jackman (Wolverine)
-- Jennifer Lawrence (Mystique)
-- Ryan Reynolds (Deadpool)
-- James McAvoy (Professor X)
-- Miles Teller (Mr. Fantastic)
-- Olivia Munn (Psylocke)
-- Kate Mara (Invisible Woman)
-- Jamie Bell (The Thing)
-- T.J. Miller (Weasel)
-- Michael Fassbender (Magneto)
-- Nicholas Hoult (Beast)
-- Sophie Turner (Jean Grey)
-- Channing Tatum (Gambit)

BTW, -- Michael B. Jordan (The Human Torch) is also in the pic ... see if you can find him!!!

(Yeah, they need more black superheroes).