We think James Corden has a bit of a crush on Paul Rudd, just like the rest of us. We've never seen him laugh as loudly at anyone's quips before - particularly when Rudd describes the time he found himself in the presence of pretty much "everyone" while the set of Captain America: Civil War... Chris Evans needed the loo, so he handed the shield to a props guy, and that's when Paul spotted his golden opportunity. 

Perhaps James was just over compensating for asking Paul who'd he'd choose to win in a fight - Batman or Superman - to which Ant-Man replied "It's tough for me to say, I'm part of a whole other family..."