Love Birds: Rachel Bilson and Hayden Christensen

Rachel Bilson and co-star Hayden Christensen are working on a movie project together and got close. Once spotted holding hands, both movie stars fueled recent rumors claiming they're dating when they were spotted feeding each other on Wednesday afternoon March 14th in L.A.

Done with the lunch, Hayden then drove Rachel's car back to her house in L.A. While speculation on their getting together as couple is heating up, either parties are keeping mum on that.

Before getting together with Hayden, Rachel dated Adam Brody for three years. They ended their relationship December last year. Hayden, elsewhere, was romantically linked to Sienna Miller, his co-star in "Factory Girl".

"Jumper", which Bilson and Hayden starring in, has been scheduled for a Feb. 15, 2008 release date.

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