Blake Lively has apparently moved on from her recent and much-publicised dalliance with Leonardo DiCaprio.

The actress spent this weekend helping her Green Lantern co-star celebrate his 35th birthday in Boston.

The pair were photographed together on two separate occasions outside Reynold's apartment in the city - where he's currently filming action comedy R.I.P.D. - sparking rumours that they are an item.

"They are very much a couple," a source told People. "They're really happy together."

"He and Blake were being really cute and affectionate together," another source told the Daily Mail.

Reynolds spent much of last summer filming adventure fantasy Green Lantern with Lively, 24.

The actress recently split from DiCaprio, while Reynolds announced his separation from Hollywood star Scarlett Johansson late last year.

Blake Lively's birthday date