Married film stars Cohen and Fisher showed up to the party around 3 a.m., dressed for bed and jokingly complained about the noise, the Post said Friday.
"Leo and his pals were partying with a vengeance when Sacha and Isla appeared in robes and slippers, jokingly saying the party was too loud and they couldn't sleep," a source told the newspaper.
"Needless to say, the revelry continued and the couple stayed to party. The crowd loved it."
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