In the first Spider-Man, at the end of the movie, Peter Parker had to deny himself a relationship with a girl that he's in love with. The very next thing that happens is that he's swinging through the city.
Digital imaging has untied our hands with regards to technical limitations. We no longer have to be arbiters of technology we get to participate in the interpretation of technology into creative content.
You had to make a camera look like it's traveling at 300 mph, but you couldn't make it actually travel at 300 mph so you had to slow everything down and build devices to do that. So you were constantly engineering.