Black Widow: 33:35.

The most surprising thing to emerge from our little experiment was the fact that Scarlett Johansson’s three-point landing super-assassin got the third-most screen time of all the superheroes. In fact, she got the most unbroken dialogue scenes of any of the six: her introductory interrogation scene (3:14); recruiting Banner in the slums (2:49); a face-off on the Helicarrier with Loki (3:30); and a conversation with Hawkeye following their fight (2:40). Looks like Whedon realized he needed to give one of the film’s two strong female characters lots of talk time.