Nearly 10 years after Ben Affleck, 34, and Matt Damon, 36, snagged Hollywood’s highest honor for cowriting Good Will Hunting, the wonder boys are working together on a new screenplay, an insider tells Us Weekly.

“They’re really excited about it,” says the source.

The childhood pals wrote GWH during the early ’90s.

And what a difference a decade makes!

Then, the struggling actors shared an apartment in Cambridge, Massachusetts.

Now the screen idols have spent two weeks getting their creative juices flowing in a $13,000-a-week house in Kauai, Hawaii.

“Ben and Matt keep taking breaks to go surfing and hang out with their families,” adds the source. “But for the most part, they’ve been writing together on this trip.”

For all the latest news on Hollywood’s biggest stars, check out the new issue of Us Weekly, on newsstands this week.

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