London (ANI): English actor Christian Bale's alleged fight with his mum happened because she insulted his wife Sandra 'Sibi' Blazic. Bale has been accused by his mother and sister of having assaulted them, but a source close to the actor says the Batman star "flew off the handle" and "cussed" his mother only after she said "outrageous" things about his wife, the Daily Mail website reported.

Even though he protested his innocence, the 34-year-old actor was arrested on July 22 for allegedly assaulting his mother and sister, but was freed on bail after five hours of police questioning. As per the source, Bale "didn't lay a finger on anyone" during the dispute on July 20.

"Christian's attitude is that this was his mother's fault because she became very provocative in an argument they were having," Daily Telegraph quoted the source as telling the paper. "Christian was stressed, but he didn't lay a finger on anyone. Instead, he flew off the handle and cussed his mother. He just got very loud because his mother was saying some very outrageous things about him, and his wife," the source added.

It is understood that the actor's relationship with Blazic has been strained in recent months. He is expected to continue shooting the next Terminator film following the assault allegation. He will continue his promotional tour of The Dark Knight, with the next stop Barcelona as the film opens around the world.