Plot hole: How come the Extremis serum was able to regenerate Ellen Brandt's arm but not repair the scar on her face? According to the movie, the serum is supposed to rewrite the body's genetic code and constantly repair damaged cells, so her face should have been restored to its original state, just like her missing arm. Even if she had been born with the scar the serum would have healed it, just like it healed all of Aldrich Killian's physical impairments. (00:51:40)
Iron Man 3 (2013)
1 plot hole - chronological order
Directed by: Shane Black
Starring: Robert Downey Jr., Ben Kingsley, Gwyneth Paltrow, Guy Pearce, Don Cheadle, Rebecca Hall
Character mistake: When Harley asks Tony what the light is coming from his chest, Tony responds "an electromagnet." Harley replies "What does it power?" An electromagnet is not a source of power. The arc reactor is the power source which powers both the electromagnet (to keep Tony safe from the shrapnel near his heart) and the Iron Man suit. (00:43:25)
Tony Stark: I've dated hotter chicks then you.
Ellen Brandt: That's all you got? A cheap trick and a cheesy one-liner?
Tony Stark: Sweetheart, that could be the name of my autobiography.
Trivia: Stay till to the end of the credits once again for an extra scene. This time featuring an unexpected cameo and after that a tag line appears that says,"Tony Stark Will Return". (02:09:05 - 02:10:20)
More questions & answers from Iron Man 3
Chosen answer: The Battle of New York was never specified to take place in 2012, we just know that the film came out then. Based on the newspaper we can assume that the battle was in June 2013, rather than some time in 2012 as many would have previously assumed.