BATMAN ARRESTED!  Christian Bale arrested for assault!  From Justjared.com...

Christian Bale walks the red carpet at the UK premiere of The Dark Knight held at the Odeon, Leicester Square on Monday.

The Dark Knight star allegedly lashed out and assaulted his mother and sister at London's Dorchester hotel on Sunday, where he has a suite.

Bale's mother Jenny, 61, and sister Sharon, 40, went to a police station on Monday to lodge a formal complaint against him.

Bale was allowed to go to the premiere but police in London were expected to question him soon after.

A Met Police spokesman said: "A 34-year-old man attended a London Police Station on Tuesday by appointment and was arrested in connection with an allegation of assault.

***SEE MORE PHOTOS OF BALE AT THE UK PREMIERE PRIOR TO ARREST HERE***

...WOW... Wonder what happened here?  I'm sure more details will come out later today.  Batman isn't supposed to be the bad guy!