Madonna and her husband, director Guy Ritchie, put on a united as they attended the premiere of his new movie, RocknRolla, in London last night (September 1st).

The couple, whose relationship has been the subject of much tabloid speculation over recent months, posed for photographs when the singer arrived shortly before the film was due to start.

Despite his wife's late arrival, Ritchie was unable to avoid questions about their relationship, and was asked by one journalist what had kept them together.

"You've just got to love your wife", he replied, adding: "Is that boring enough?"

He also said he hadn't read a tell-all book by Madonna's brother Christopher Ciccone, which candidly attacks their marriage.

RocknRolla, which is based on a real estate scam, opens in cinemas across the UK on September 5th.

Madonna is currently on a 27-date world tour in support of her latest album 'Hard Candy'.

(by Jason Gregory)