Robert Pattinson has walked the red carpet at the New York premiere of his latest film, Cosmopolis, in his first official appearance since his rumoured split from Kristen Stewart.

The couple has hardly been seen since news broke last month that Kristen cheated on him with married film director Rupert Sander.

R-Patz fans from around the world lined the street to catch a glimpe of their favourite actor, which Pattinson said still surprises him.

"I didn't expect it from the first Twilight movie, I never expected my life to be like this and so it's kind of weird to have lasted," he said.

"And for people to come to movies that I'm really proud of and I didn't really think anyone's going to see, I mean it's like, it's kind of amazing."

Pattinson also joined Cosmopolis director David Cronenberg at the New York Stock Exchange the following day, where the pair rang the opening bell.