Most Iconic Cameos in Blockbuster Movies
Samuel L. Jackson in Iron Man
Before Samuel L. Jackson become a total staple to every Marvel movie ever, the highest grossing actor of all time had to start somewhere in the franchise.
So when he showed up as Nick Fury on Iron Man, everybody basically lost it, but only those super fans who stuck around past the credits caught the sneaky cameo.

Samuel L. Jackson in Iron Man
It may not seem like much now, but in 2008 his appearance was groundbreaking.
The crazy thing is, Jackson later reveals that the scene took a shockingly short amount of time; “ I was there maybe an hour and a half, because I think at that time, I had my own mustache and goatee.”