Robert Downey Jr Teases Big Marvel Announcement

avengers age of ultron
Robert Downey Jr. dropped a big tease today via Twitter, and some are speculating it could involve Spider-Man.

Will Spidey make a cameo in this summer's 'Avengers: Age of Ultron' - or will the big announcement involve Iron Man?

Check out the video below for more details, courtesy of Dana Ward and Clevver Movies.

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