If it's hard to imagine superheroes as being anything but smooth, one look at this "Avengers: Age of Ultron" gag reel will shatter your preconceived notions. Watch the clip, which is the second gag reel Marvel has released, a to see Tony Stark flub a few lines, Captain America break into some dance moves and even some CGI fails.
For more fun, check out the first gag reel from "Avengers," which focuses a little more on the Black Widow and Bruce Stark:
"Avengers: Age of Ultron" is available on Digital HD Sept. 8 and Blu-ray Oct. 2.
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