Is Crossbones in 'Captain America's' Future?

Will one of the bad guys in next year's "Captain America" sequel live to plot villainy another day? An interview teases a return engagement. For those wishing that Frank Grillo's appearance as Brock Rumlow in next year's Captain America: The Winter Soldier could lead to bigger and better things -- or, at least, things that could mean a transformation into Rumlow's comic book alter ego, the thuggish Crossbones -- a recent interview may offer reasons to feel hopeful. Talking to Crave Online, Grill...