Both the film and comic versions of Captain America: The Winter Soldier deal with Captain America encountering the friend he thought had died back in World War II, who is actually alive, brainwashed and working as an assassin.
The comic and movie have some major differences, like the roles of Black Widow and Sharon Carter, the nature of S.H.I.E.L.D. and the origin of the Winter Soldier. Our CineFix series, What's the Difference, reveals those differences here.
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