In this behind-the-scenes video Marvel showcases how it creates the various super powers on screen with some examples from Avengers: Age of Ultron. You can see the process of translating unique new powers from script to screen and how important it is that they do look as natural as possible, while of course not being realistic at all. The process is detailed and involves both a lot of special effects and also training of the actors. Take a look in the above video to get a better understanding of how the action in Marvel super hero films is designed.