Actor Zac Efron has sparked rumours of a reconciliation with his ex-girlfriend Lily Collins after the young couple was photographed while enjoying a movie date in Hollywood last week (ends11Oct13).

The Hairspray hunk is reported to have enjoyed a three-month fling with Phil Collins' actress daughter last year (12), before she went on to romance her Mortal Instruments: City of Bones co-star Jamie Campbell Bower, who she split from in August (13).

And it appears Efron and Collins are giving their relationship another go after they were spotted leaving a cinema together on Friday (11Oct13), weeks after reports surfaced suggesting the actor had completed a stint in rehab earlier this year (13).

Efron, who previously dated his High School Musical co-star Vanessa Hudgens, has yet to directly address the claims, but recently reached out to fans online to thank them for their support.