Second ‘Avengers’ movie wows with moments big and small

Film brings many heroes together against A.I. threat There’s a lot going on in Joss Whedon’s “Avengers: Age of Ultron,” released last week to the second-biggest box office opening in cinema history. It’s a big movie, just like its predecessor. It once again brings together the six main Avengers (Iron Man, Captain America, Thor, the…