He didn’t know it was Bucky specifically, but he did know that Hydra had murdered Tony’s parents - it’s part of what he learned from AI Arnim Zola in Winter Soldier. That’s what he was trying to spare Tony from finding out.
Abraham Lincoln: Vampire Slayer suggests the Civil War, but with vampires.
Captain America: Civil War suggests the Civil War, but with Captain America.
<cue star-spangled shield parrying Stonewall Jackson’s cavalry saber>
And in both, the hero had a wisecracking Anthony Mackie for a sidekick.
With a small role for the guy who played Howard Stark.
Almost everything regarding Stark makes no sense. In the first Iron Man, the guy who took him in and raised him after his parents die, for no reason that is actually established in the movie, decides to kill him, and (despite his orphan raising history) reveals himself to be an evil megalomaniac with no obvious goals to accomplish beyond ‘eeeeevvvvvviiiiiillllll’. Now, we have Stark suddenly being all, “Oh hey, the world government wants to constrain me and tell me what to do? Woohoo! Yeah boy, howdy doody!” Which completely goes against everything we know about him, yet doesn’t appear to be an act. And then Captain America would rather Stark continue to believe that Stark’s parents died because his dad was driving drunk and killed both himself and Stark’s mom, rather than that Dad posed a threat to a giant evil organization and was targeted for assassination. How is the former better? If I was Tony Stark, I’d want to know because that turns my dad from being an asshole to being a badass.
Can I just be really shallow for a minute?
There are some super-goodlooking guys in all these movies, but of all of them I find myself wanting to build a shrine to Anthony Mackie’s cheekbones. DAMN that man is hot.
I mean, I wouldn’t kick Hemsworth or Downey out of my bed if he showed up in it, but Mackie. Unffff.
There was nothing in the movie that indicated that Stane raised Tony. Tony was somewhere between 17 and 21 when his parents died, and Stane took over the company until Tony turned 21. But he wasn’t tucking Tony into bed at night.
And hating Tony makes complete sense. He’s sick of being 2nd fiddle to him, and cleaning up his messes, such as Tony not attending the awards ceremony because he’s at the craps table. Stane wanted to run the company himself again.
Because Tony, and no one else, was responsible for Ultron and by extension Sokovia.
When was it ever indicated that anyone thought Howard Stark was driving drunk when he died? And like Steve said, he thought he was sparing Tony pain, but he was really sparing himself the pain of telling Tony.
I wonder since it appears Tony may have ended up with the shield …and was in a base with the remnants of a working super soldier serum… could we see a US Agent/ Fake Captain America? Maybe someone to be an early casualty in the next Avengers movie.
Tony Stark started of his arc by telling the government to fuck right off because he knew better, then he fucked everything up leading to Ultron. Captain America started his arc by working directly for a secret government agency then having to watch said entity which was created by the woman he loved get corrupted and end up as a front for Hydra. Both their decisions make perfect sense.
Stane’s motivations were laid out pretty clearly: he was making a lot of money on the side selling weapons to the black market. Tony shut down the weapons division and started asking uncomfortable questions about how StarkTech rockets were ending up in the hands of terrorists. As long as Tony is alive and paying attention to whats happening at StarkTech, Stane can’t make buckets of money on the side by selling weapons to terrorists.
I don’t know that I’d call 8 years of steady character progression across seven different movies “suddenly.” Yeah, Tony in Civil War is not the same person as Tony in Iron Man. Nor should he be: if he still had the same motivations now that he did in 2008, that would be poor writing. Characters should change and grow. Tony’s not the cowboy he was when he first built the suit. He’s been running the Avengers for several years, he’s seen the danger to the world of not having something like the Avengers around, but he’s also seen the fallout from his own mistakes, and is trying to figure out how to balance those two responsibilities. His position in Civil War is an absolutely organic development of his character, from the cocksure schmuck who embarrassed Gary Shandling on C-SPAN to the guy who’s realized that his own judgement is not infallible, nor are his shoulders broad enough to carry the entire world on his own.
What you missed here is that Cap didn’t keep that secret to help Tony, he kept it secret to help Bucky. Yeah, he should have told Tony, but if he did, Tony was going to go after Bucky, and Cap has more loyalty to his childhood friend than to his teammate.
Vision’s dress style: It goes with the 70’s comics version of Vision, where he had just started consorting with humans and had no ideas about their culture and style.
Zemo’s manipulations: I think he actually planned to see if he could reawaken the super soldiers and get them to fight the Avengers, but when he got to the secret base and saw that they were all dead, he played his only remaining Ace in the hole, the video.
Maybe some of the plot continuity scenes got cut for time and will be included in the DVD release.
That doesn’t explain why Stane wanted to kill Tony in the first place. Remember - he’s the one who hired Raza and the Ten Rings to kill Tony, while Tony was demonstrating Jericho to the generals in Afghanistan. Tony was still thrilled to be designing and selling weapons at that point. Stane even said later “When I ordered the hit on you, I was worried that I was killing the golden goose. But, you see, it was just fate that you survived it, leaving one last golden egg to give”
I don’t see it that way. When Tony asked him if he knew, Cap’s first response was “I didn’t know it was him”, to which Tony asked again, “Did you KNOW?” and Cap replied “Yeah, I knew.” I see that as Tony’s 2nd question being “Did you know my parents had been murdered?” not “I don’t believe you so I’m asking the same question again.”
If you watch the scene in Winter Soldier, it’s crystal clear that Hydra killed the Starks, but not evident who actually did it.
Zemo killed the other super soldiers. When Cap, Bucky, & Tony arrived there were bullet holes in the containers that weren’t there when Zemo first got there. That’s why he said they “died peacefully”.
I’m just the opposite view. I think he DID ask the same questions twice knowing that Cap’s first reaction is to protect his friend.
It’s almost as if Tony knows that The Golden Boy isn’t going to lie, or at least doesn’t want to, so he gives him one last chance to confess, which Cap does.
I still don’t understand how Cap knows that it was Bucky who killed Stark’s parents, yet Stark, who used a watch battery to crack into all of SHIELD’s systems on the Helicarrier in Avengers 1, didn’t use his tech to comb through and find interesting things in Black Widow’s data leak.
Interesting observation by Ms. Cups: It’s pretty convenient that Tony is there with his unlimited bank account and immeasurable genius so that no matter what the characters need, Tony can provide it with a wave of the hand.
I disagree. And I’ll note that my interpretation of events doesn’t require Cap to know Bucky killed the Starks. 
Besides, how was Cap’s first answer protecting Bucky? They had just watched a video of Bucky killing the Starks. If he was lying, it was to protect himself, which is unthinkable for Cap & his perfect teeth.
But even if you’re right, the fact that Bucky killed the Starks wasn’t in the data leak - that’s why Zemo had to get time alone with Bucky, to find out just what did happen in the 1991 mission.
The flash of the Winter Soldiers metal arm after the ‘deceased’ picture of Fury is a pretty good indicator that Hydra - and The Winter Soldier - were responsible for both of the previous two events.
Remember - Zola knew who Bucky was to Rogers - so as soon as Rogers finds out - it becomes a 2+2 gut kick.
As for Zemo figuring it out - he learned about it as someone upthread said - he put 2 and 2 together and finally found the tape after activating the WS.
and that is my biggest single nitpick for the movie - the precision of Zemo’s plan at that point - he had precise timing for when he would be alone with Bucky to activate him - precise enough timing to set off an EMP. And why the FRACK would anyone leave someone alone with him??? - but I can live with it.
Straight road, slammed into a tree? If not drunk, certainly doing something very wrong.
Old man - driving at night - straight road/no real lighting - sleep at the wheel would be my first thought - followed by drunk, then by, well, things that are illegal in Tennessee.
The super soldiers were not all dead, Zemo killed them.
I’m pretty sure that cars had headlights by 1991, and regardless of what age he might have been supposed to be, he looked 50, which isn’t all that old.