Robert Downey Jr. has revealed that he was blinded by the original 2008Iron Manhelmet. The actor and director Jon Favreau had no idea that they were about to make comic book movie history and launch the Marvel Cinematic Universe when they were making it. The whole thing came as a complete surprise and helped Marvel Studios boss Kevin Feige achieve his goal of bringing more characters from the page to the big screen.

WhileIron Manproved to be a major success, it was a bit difficult on the set at times forRobert Downey Jr.In a new interview with David Letterman, he discussed some of those difficulties that were fixed in later installments, leading up to last year’sAvengers: Endgame, which is currently the highest grossing movie of all time. Downey Jr. had this to say about the originalIron Manhelmet.

“Initially, everything was really there. They wanted to spend as little as they could onCG replacement, so I remember this helmet went on, and there’d be a shot, and I’d be in this whole suit, and they’d say: ‘All right, Robert, it’s like you landed on the roof, so when we say action, just go like that, like you just landed, and then start moving forward.’ So I put this helmet on, and it slammed closed, and I couldn’t see anything, and then these LED lights went on and it was likeThe Manchurian Candidate… I was absolutely blinded.”

As it turns out, a lot more of theIron Man helmetin the MCU was done with CGI. “By the time we were doing the lastAvengers, they’d just be like, ‘Hey, Robert, would you mind putting on-’ ‘Helmet?! No! Yes, no. Put two dots here, and then you’re able to paint it in later.'” Whatever the case may be, it certainly worked out well for the actor and his performance, along with all of the rest of the characters who had to work with their own motion capture dots.

Josh Brolin’s Thanosis a CGI creation, as he looked far from menacing on the set ofInfinity WarandAvengers: Endgameas he walked around in a motion capture suit. The same can be said for Mark Ruffalo’s Hulk. However, the special effects in the movies have been praised by many in the industry for being groundbreaking. While Brolin and Ruffalo had to get all of those movements down, the special effects do not take away from their performances.

Robert Downey Jr.’s Tony Stark did not make it out ofAvengers: Endgamealive. It was a heartbreaking moment for longtime MCU and comic book fans, even though they mostly knew that the actor was done with the character. Downey Jr. and Chris Evans decided to leave the party before they were asked, which leaves the future of those characters wide open. With that being said, it seems like some of the hardships behind-the-scenes were all worth it in the end. you’re able to check out a clip of the new interview with Robert Downey Jr. above, thanks to theNetflix is a Joke YouTubechannel.