Scientists try to explain why everyone loves the 'Avengers' movies

The Marvel movies are some of the most successful Hollywood blockbusters of all time. Sure, Avengers: Endgame can't seem to beat Avatar for the all-time crown, but hey, you'd be hard-pressed to find another collection of properties capable of pulling in numbers like the Avengers and its associated origin stories. But why are they so popular? Is it just the big-name stars that pack the cast, or is there a pattern at work that we just can't see? That's what researchers from the ARC Center of Excel...