Rachel Bilson and her lightsaber-toting beau, Hayden Christensen, are engaged, according to reports.

The couple, who met and hooked up while filming the 2008 sci-fi film, Jumper, got engaged over the Christmas holidays, a close friend of Bilson’s has revealed.

“They’re so excited,” the friend said. “They’re a great couple. Rachel seems thrilled beyond belief.”

No wedding date has been set as yet, the pal added.

When contacted for confirmation on the surprise engagement, reps for both Bilson and Christensen refused to comment.

“I don’t comment on my clients’ personal lives,” Bilson’s rep said.

Bilson, who got her big break in teen series The O.C., previously dated Adam Brody (another co-star!), and came close to marrying him before the pair split in 2006.

[Source]