There's no need for psychiatric intervention just quite yet, but the mighty Marvel movie empire is showing definite signs of having a split personality.
On the one hand, you have those big clanking machines like "The Avengers" and "Captain America," stuffed to bursting with superhero braggadocio. Then there are the loose, anarchic films, more offbeat items that seem to come from another universe entirely. Films like "Guardians of the Galaxy." Films like "Ant-Man."
Playful in unexpected ways and graced with a genuinely off-center sense of humor, "Ant-Man" (engagingly directed by Peyton Reed) is light on its feet the way the standard-issue Marvel behemoths never are.