20 Things You Didn’t Know About Iron Man 2
14. Al Pacino Was Considered To Play Justin Hammer
The role of Tony Stark's arrogant, impetuous rival Justin Hammer was ultimately played with a hammy glee by Sam Rockwell, though Jon Favreau originally considered one of the all-time giants of acting to play the part - Al Pacino.
There's no word on why it never panned out, but clearly Pacino would've lent a very different dimension to Hammer. Though given his fondness for swinging for the rafters, he clearly could've had a ton of fun with the role.
Pacino was also later linked with the role of Ego the Living Planet in Guardians of the Galaxy Vol. 2 as eventually played by Kurt Russell, and though it didn't pan out, the legendary actor has since stated his enthusiasm for the first Guardians, calling it "amazing."
Fingers crossed we might get to see Pacino pop up in an MCU movie at some point in the near-future.