'Demanding' Robert Downey Jr

Dec 19, 2008, 9:25 GMT

Diva? Robert Downey Jr. poses upon his arrival to the 56th San Sebastian International Film Festival EPA/JAVIER ETXEZARRETA

Robert Downey Jr. is reportedly making extravagant demands on the set of his new movie 'Sherlock Holmes'.

The star has been ordering runners to fetch him an array of luxury items, despite shooting in remote locations where conveniences are in short supply.

A source told Britain's Daily Mirror newspaper: "Robert had one crew member running around like a headless chicken trying to find a straw after he demanded one for his drink.

"The poor guy was stressing as they were in the middle of nowhere on an old dockyard, so there was hardly a store nearby."

The 43-year-old actor - who has enjoyed a successful career comeback following his stint in prison and rehab after a period of drug abuse - has also allegedly been bragging about his acting prowess.

The source added: "Robert has a habit of telling everyone how great his last scene was - just after he's filmed it."

During the shoot, Robert - who plays the titular detective - has accidentally set his crotch on fire and was knocked unconscious after being punched by a stuntman, which required six stitches.

'Sherlock Holmes' - which is directed by Guy Ritchie and also stars Jude Law - is due for release in November 2009.