Paltrow's mother, actress Blythe Danner, was also among the guests.
"It was gorgeous -- the most beautiful wedding I've ever seen," she told photographers Sunday, according to People.
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Paltrow was previously married to Coldplay frontman Chris Martin, and is parent to two children, 14-year-old daughter Apple and 12-year-old son Moses, with the singer.
She confirmed her engagement to Falchuk in January.
"We feel incredibly lucky to have come together at this juncture in our lives when our collective successes and failures can serve as building blocks for a healthy and happy relationship," the star said at the time.
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