The superheroes you see on screen today didn't start out looking this awesome, and may even be un-awesome in the future when they evolve to better versions. But here's taking a look at where they started and how they look like right now.
Iron Man – 1977 vs. 2008

The Hulk – 1978 vs. 2012

The Amazing Spider-Man – 1977 vs. 2016

Wolverine – 2000 vs. 2013

Captain America – 1990 vs. 2016

Catwoman – 1966 vs. 2012

Batman – 1943 vs. 2016

Superman – 1948 vs. 2016

Thor – 1978 vs. 2013

The Fantastic Four -1994 vs. 2015

Wonder Woman – 1975 vs. 2016

Doctor Strange – 1978 vs. 2016

The Joker – 1966 vs. 2008

Robocop – 1987 vs. 2014

Teenage Mutant Ninja Turtles – 1990 vs. 2016

The Flash – 1990 vs. 2016

Nick Fury – 1998 vs. 2012

The Punisher – 1989 vs. 2016

Daredevil – 2003 vs. 2016
