Robert De Niro and Christopher Walken are set to reunite onscreen for the first time since their Oscar-winning turn in The Deer Hunter to play pensioners at a stag party.

Fellow Hollywood veteran Michael Douglas has already signed up to star in upcoming comedy Last Vegas - dubbed "The Hangover with old people" - and rumors are swirling that De Niro and Walken will join him.

It will be the first time the pair has worked together onscreen since 1978 Vietnam movie The Deer Hunter, which landed Walken an Academy Award for Best Supporting Actor and De Niro an Oscar nomination for Best Actor.