Actor Christian Bale reportedly flew into a rage on the set of forthcoming film Terminator 4 last Friday - just two days before he is alleged to have assaulted his mother and sister.

The Batman star, 34, was arrested in London on Tuesday over allegations he attacked his mum Jenny, 61, and sister Sharon, 40, at the capital's Dorchester Hotel on Sunday night.

Bale - who has denied the accusations - was subsequently released on bail, but reports have now emerged online claiming that he also lost his temper while shooting action movie Terminator 4 at Kirtland Air Force Base in New Mexico.

According to website TMZ.com, the actor became incensed when he thought Shane Hurlbut, the director of cinematography, messed up a shot.

The site claims Bale screamed, "I will kick your ass" to Hurlbut, before hurling several other insults at him - in front of hundreds of cast and crewmembers, as well as Military Police officers.

However, other sources have played down the reports, saying Bale was simply "extremely tired and having a bad day".

Bale is due to return to London to face possible assault charges in September.