The pair - who played lovers in 2001 movie 'Sweet November' and also starred together in 'The Devil's Advocate' - stunned onlookers with their intimate embrace as they left a Beverly Hills restaurant on Monday (04.05.10), before breaking apart when they realised they had been spotted.
A fellow diner at upscale eatery Bouchon revealed Charlize, 34, and Keanu, 45, were enjoying each other's company and seemed in no hurry to end their date, tasting several red wines before selecting a bottle and indulging in several snacks before starting their meal.
The onlooker told website HollywoodLife.com: "Keanu and Charlize were having a great time. They were constantly laughing, almost disrupting other tables with how loud they were. They were wrapped up in each other's conversation and having a great time together."
According to the eyewitness, Keanu paid the entire bill and added a 70 per cent tip to the $200 charge.
Charlize has been single since splitting from Stuart Townsend earlier this year, while Keanu - whose long-term partner Jennifer Syme died in a car accident in April 2001, two years after their baby was stillborn - enjoyed a brief romance with actress Parker Posey last year.