The star's mother Jenny, 61, and sister Sharon, 40, claim Bale lashed out at London's Dorchester Hotel on Sunday night. The pair filed their allegation at a police station in Hampshire, England, on Monday.

But authorities were reluctant to speak to Bale on Monday--because he was promoting The Dark Knight in London.

A source tells British newspaper The Sun, ""It was a very difficult situation, but it would have been wrong to have wrecked the premiere over a complaint which we don't yet know is founded in truth.

""But Mr. Bale will be contacted at the earliest opportunity and be asked to provide an account of anything that happened.""

A police spokesman says, ""We can confirm we have received allegation from another force in relation to an alleged incident in central London.""

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