But of course this is a Marvel Studios film, and ALL strings are attached, but does Avengers: Age of Ultron surpass the original? Luke Miksa reviews:
Avengers: Age of Ultron is a movie that genuinely needs no introduction. If you are not familiar with billionaire philanthropist Tony Stark (aka Iron Man, Robert Downey Jr.), Asgardian prince Thor (Chris Hemsworth), or time-displaced World War II super-soldier Steve Rogers (aka Captain America, Chris Evans), then perhaps you have been in suspended animation the last eight years. Avengers: Age of Ultron is the sequel to the 2012 superhero team-up film The Avengers and the 11th film in the interconnected Marvel Cinematic Universe. This time, the Avengers must again team up to fight a power of their own creation, the sentient artificial intelligence known as Ultron (James Spader), a being with the intent of cleansing the world of humanity.

The boys are back (plus a girl or two, I guess).
The movie opens right in the thick of The Avengers raiding the Hydra base of Baron von Strucker to regain the sceptre seen in previous films. Director/screenwriter Joss Whedon doesn’t bother with building up the opening — we have seen this before — so jumping straight into the action from the get-go is the perfect way to establish what this movie is all about: all action, all the time. This opening scene in particular features a wonderful long tracking shot following all the characters battling the Hydra army, with many insta-iconic imagery coming from just this single scene; welcome back, everyone!