(Cover) - EN Showbiz - Keanu Reeves has been linked to a mystery brunette woman.

The actor was spotted with the young lady in London over the weekend. The pair enjoyed a meal at exclusive eatery Nobu Berkeley and looked relaxed and happy in each other's company.

The 46-year-old actor was dressed casually for the dinner date, choosing faded jeans, an old T-shirt and a khaki jacket paired with desert boots. He was also carrying a motorbike helmet, while his hair was long and he had a beard.

His female companion also decided against dressing up, instead choosing black tights and a denim mini-skirt which she accompanied with a grey top and blush jacket.

The duo walked through the streets of London together, although Keanu did seem unhappy to be photographed. He is known for being fiercely protective of his private life, and raised his hands to shield himself from flash bulbs.

Keanu is thought to be single at the moment, although there were rumours he was dating Charlize Theron following her split from long-term boyfriend Stuart Townsend last year.

The actor recently finished shooting movie 47 Ronin in Budapest. Further scenes are being filmed in England, and the story centres on a group of samurai who want revenge after their leader dies. The 3D picture is due out late next year. (C) Cover Media