Rocky Billy Zane

19-08-2006 08:47

Billy Zane and Kelly Brook's relationship is reportedly on the rocks.

The 'Titanic' actor and his 26-year-old fiancee, who have already postponed their marriage once, have been going through a difficult period in their relationship.

A friend of the couple told Britain's Closer magazine: "They've been going through a rocky patch and bickering over silly things."

Kelly and Billy, 40, are said to have had a huge row after the premiere of their flop film 'Three' earlier this summer because Kelly flashed too much flesh.

When Kelly stepped out of her car onto the red carpet in a high-necked shift dress she accidentally showed she wasn't wearing any knickers.

She later confessed Billy had ordered her to wear big underwear next time.

The former glamour girl used to regularly pose for sexy photo shoots, but since meeting Billy she has become a more modest dresser to please him.

The couple postponed the wedding last year, stating there was "too much fuss."