Gerard Butler dating Ashley Greene?

Gerard Butler and Ashley Greene have sparked rumours of a possible romance.

The Twilight actress and Butler were spotted together at New York City club the Boom Boom Room earlier this month and were said to be very affectionate.

"He had a hand on her shoulder and leaned in to her," a source told US Weekly. "He really turned on the charm."

Butler was recently linked to Jessica Biel after the pair were allegedly seen on a "romantic bike ride" together.

He was previously linked to Kangana Ranaut and Priyanka Chopra earlier this year.

Greene split from Joe Jonas in March 2011 and has since been connected with Kings of Leon bassist Jared Followill and Captain America star Chris Evans.