The pair grew close while filming their new movie 'Begin Again' in New York and the 35-year-old comic actor puts their new found friendship down to growing up in the UK.
He told heat magazine: ''We got on really well. I'm so pleased to see that came across in the film. I think maybe because the two of us were Brits in New York, it brought us together a bit more.
''She's so relaxed. She takes the work seriously, but she doesn't take herself seriously, which is the best kind of person.
''I think this is one of her best performances. She's so warm in it''
'Begin Again' also stars rapper and record producer CeeLo Green, who Corden insists is ''the most fun in the world'' despite spending a lot of time on the phone.
He explained: ''[He's] the most fun in the world. He has a guy who goes everywhere with him, who stands at his shoulder. He has two phones and is just constantly texting on them. Every now and then he shows CeeLo a message - that's all he does.
''I've no idea what he was doing or who he was, but he was texting two people at the same time. I've never seen anything like it.''
Martha is soon caught in the middle of a hitman war.
News on Bran, Dany and Arya in these latest images.
Everyone wants this year to be Leo's year.
It's been 15 years since Zoolander hit movie screens in 2001.
After his starring turn in The Green Lantern tanked at the box office, critics were surprised that Ryan Reynolds was pushing for a solo movie based...
Shot on a plane in zero gravity, the video features OK Go's usual levels of choreography with a few surprises thrown in for good measure!
Rebel Wilson has taken the world by storm after arriving in America five years ago.