'Avengers: Age of Ultron' was definitely built on the bullet point takeaways of 'The Avengers,' which are: Make time and space for wit, banter and humor for the sake of humor to prevent the film from taking itself too seriously give each character a story arch and independent moments choreography clever action sequences with well-timed glory shots.
The task of making a sequel to that ground-breaking, monumental event film, however, and being expected to deliver on par or better results, is an entirely different beast. The task of bringing together Earth's mightiest heroes took Joss Whedon into uncharted territory with 2012's 'The Avengers,' and, despite the weight of the Marvel Cinematic Universe on his shoulders, the results were staggeringly entertaining.