- In the film proper, the whole testing of the wireless suit up. It starts out fine but the pieces start coming in faster than Tony realizes. He handles it at first and even pulls off a badass flip to catch the faceplate...then one of the parts that flew into one of his display cases hits him from behind and sends him and the pieces of the suit flying.
- The Mark XLII chilling on Tony's couch. Then Pepper flirts with Tony while he's in the suit. Or rather, while he's not. When he mentions she had a meeting with Aldrich Killian, the suit turns to Pepper in a disapproving look!
- And then Pepper looks back at it, goes "What?" and the armor looks sad and walks off.
- Pepper's reaction to the reveal that the armor was empty and Tony was downstairs in his basement doing something else. Or rather, her lack of reaction.
- Tony leaving Harley behind.
Wait, are you trying to guilt trip me? Harley: I'm cold. Tony
: I can tell, you know why? [beat
] Because we're connected
. [drives away
- Tony's expression during this just sells it. That wry grin of his is absolutely hilarious.
- After saving the crew of Air Force One, Iron Man looks to make sure everyone's okay. When he confirms they are, he turns around to fly away... and gets hit by a truck. Good thing he wasn't in it.
- Tony's waiting and stalling for the Iron Man armor to arrive when he's been captured so he can break free. His antics whilst waiting are hilarious, then become a Crowning Moment of Awesome.
Guard: How did we end up with this shift?
- Even better, it comes after he takes out the guards with only two pieces of his armor and a gun.
- When he finally gets outside, he's fully suited up save for his faceplate. Remembers how it beaned him the last time. He quickly grabs it out of the air as it's rocketing toward him and calmly puts it on.
- Then when he tries to fly, the thrusters short out, lacking power. Seeing Tony clonk delicately down a flight of stairs in the armor is nothing short of hysterical.
- The first time Tony jumps up to take a peek over the crate to see how many enemies they're up against:
Rhodey: What'd you see?
Tony: Too fast, nothing.
- Fridge Brilliance kicks in when you realize that Tony Stark just failed pulling off a Sherlock Scan (and acknowledging that he didn't look long enough to get a good glimpse).
- It's even funnier when you know that Robert Downey Jr. ad-libbed that.
- Tony Stark is not good with kids:
Harley: Well, mom already left for the diner, and dad went to 7-Eleven to get scratchers. I guess he won, 'cuz that was six years ago.
Tony: [awkward pause] Which happens. Dads leave, no need to be a pussy about it.
- During the final battle, Tony calls for his Mark XLII armor. In the background, it comes closer and closer, Tony stands ready, the music builds up...only for the armor to hit a pole in the way and break into pieces. Tony's expression says it all.
Tony: Well I'll be damned... The Prodigal Son returns...
[Mark XLII crashes and breaks into pieces in front of Tony]
- The look on Aldrich Killian's face when it happens just really sells it.
- The post-credits stinger, which is that Tony was casually telling the film's story to a clearly asleep Bruce Banner, who tells him that he's Not That Kind of Doctor. Undeterred, Tony picks up where he left off and continues rambling.
Bruce: I'm not a therapist, it's not my training. I don't have the — Tony: What, the time? Bruce: ...Temperament.
- Bruce dozed off at "going down the elevator in Switzerland", and Tony didn't notice until the very end, he's that self-absorbed. He only realized Bruce wasn't paying attention when he dropped his glasses.
- Tony's quips during his fight in Rose Hill against Ellen Brandt.
Tony: You walked right into this: I've dated hotter chicks than you.
Brandt: That all you got? A cheap trick and a cheesy one-liner?
Tony: Honey, that could be the title of my autobiography.
- Tony nicknames a Mook "Ponytail Express". The exact character name that said actor gets in the end credits.
- Tony begging Maya not to tell him there's a twelve year old kid in her car.
Dr. Maya Hansen: Thirteen, actually.
- Made even better by Tony's shoulders hitching immediately.
- After a particularly intense moment where Tony is investigating the Extremis attack that Happy was injured in, his doorbell suddenly rings and he sees on his security camera Maya standing at the door. Complete with JARVIS snarking back
Tony: [to JARVIS, exasperated] Are we still at ding-dong? We're supposed to be on total security lockdown! C'mon! I threatened a terrorist!
JARVIS: There's only so much I can do when you give the world's press your home address...
- Tony asking Pepper why she doesn't walk around in lingerie more often.
- Tony tells Maya not to be upset that he can't remember her because he can't remember what he had for breakfast. Without missing a beat, JARVIS informs him, "Gluten-free waffles, sir."
- Without any other beats lost, "That was it."
- Dr. Maya Hansen calls on Tony, is subjected to one of Tony and Pepper's signature squabbles, especially when her attention is drawn to the giant stuffed bunny in the room.
Tony: Yes, that's normal. It's a big bunny, relax about it!
- Much as the context is a CMOA, this line is still a big laugh:
- After reuniting with Maya in Killian's Base, Maya shows Tony the equations he had written down on the back of a card in the beginning of the movie 13 years ago... and he has absolutely no memory of the event (most likely due to the fact that he was drunk). Maya's reaction sells it. This equation has been what has fueled her research into Extremis for the last 13 years, and the man who gave it to her just revealed that it was something that he scribbled out one night when he was drunk and that he has no memory of ever doing.
- On a similar note, towards the end of the film, Tony tells an Extremis-affected Pepper that she shouldn't worry about exploding.
Tony: Don't worry. I almost had this 13 years ago when I was drunk.