Jennifer Lawrence went from Hollywood A-lister to starstruck fan when she bumped into Damian Lewis.

The Oscar-winning actress was being interviewed by Access Hollywood at the Screen Actors Guild Awards when she spotted the Homeland star, who plays Brody in the hit US drama, on the red carpet.

She told her interviewer: "I've watched two seasons of Homeland twice, and I'm freaking out a little bit.

"That is Brody. I've never met Brody before."

Asked whether she wanted to meet him, the Oscar-winning star replied: "No, be cool."

When the Access Hollywood interviewer tried to get the British actor over, The Hunger Games actress urged her to "stop it".

Damian walked over and the pair hugged, to which an embarrassed Jennifer gushed: " This is so amazing.

"My ears are so red aren't they?" she said, to which Damian joked: "They're not as red as my hair."

When the reporter then revealed the season three finale and what happened to Damian's character, Jennifer looked shocked.

"What? I can't process this right now... I can't believe you said that... I haven't watched the third season. I have to wait for it to come out on DVDs because I'm not patient. I can't believe you did that."

Damian joked: " Are you crying? You have such extraordinarily emotional access."

The American Hustle star said: "I'm past mad. It's this weird other emotion. I feel like my heart just fell out."