Romantic getaway for Witherspoon and Gyllenhaal

Reese Witherspoon has further fuelled rumours she is dating 'Rendition' co-star Jake Gyllenhaal after the couple were spotted on a romantic weekend in California's wine country.

The couple, who were recently photographed walking hand-in-hand on the streets of Rome, Italy, checked into the Carneros Inn in the Napa Valley on Sunday.

A source tells People.com: "They were very affectionate with one another. They were cuddling, and he kept giving her little kisses.

"It was clear they wanted to be left alone."