Captain America: Civil War might have a Hulk.
After being one of two lone hold-outs (with Chris Hemsworth's Thor) from being listed as part of the 2016 movie now filming in Georgia, actor Mark Ruffalo has posted two items on social media that would seem to suggest that Bruce Banner and the Hulk might be coming back sooner than expected after the end of Avengers: Age of Ultron.
And on his Tumblr, Ruffalo posted a link to the week-old announcement that filming of Captain America: Civil War had begun, saying "Welcome to the wild party! Looking forward to this amazing cast."
While it's possible Ruffalo could be sitting out this movie and referring to the cast as part of the Marvel Cinematic Universe family, the fact that Ruffalo held off on acknowledging this on social media for a week seems conspicious -- especially that he now acknowledges it not once but twice.
Remember, while Ruffalo doesn't have his own movie franchise as the Hulk, he has appeared in a non-Avengers film before, that being Iron Man 3.
We're no Columbo, but the chances for the Hulk appearing in Captain America; Civil War went from next to nil to to within the realm of possibility.