Judy Greer Marries Dean Johnsen

Judy Greer has lots to celebrate this holiday season!

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The Descendants actress, 36, and her Real Time with Bill Maher co-executive producer beau, Dean Johnsen, tied the knot on Saturday night, a source tells PEOPLE.

The former Mad Love star and Johnsen said, "I do" at the Los Angeles Athletic Club in front of approximately 200 friends, including Bill Maher, Rashida Jones, and her former CBS costars Jason Biggs, Sarah Chalke and Tyler Labine.

"The couple looked amazing! The ceremony was filled with laughter amongst friends," a source tells PEOPLE of the wedding, planned by Kelly Demaray from Demaray Events. "Both the bride and groom seemed to have an amazing time celebrating the evening."

After the newlyweds walked down the aisle, guests headed to the venue's club where they boogied the night away in the newly renovated ballroom.

"Rashida, Sarah and Jason danced to 'Bust a Move,' " the source says. "Everyone looked like they were having a blast."