The pair attended a special screening of Girl Most Likely (starring Kristen Wiig and Annette Bening), hosted by The Cinema Society and Brooks Brothers. Afterwards, the couple headed over – along with much of the cast – to a rooftop party at Hotel Americano.
“They were adorable,” says an onlooker. While guests sipped Kim Crawford Sauvignon Blanc and Pinot Noir, “Jenna munched on a beef slider, and Lee stayed close to her most of the night. They were laughing and smiling,” as they mingled with other celeb guests.
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Adds the partygoer, “When they crossed the room he’d often keep his hand on the small of her back and guide her. They certainly looked smitten to me.”
Also hanging out on a sweltering night: Saturday Night Live alums Wiig and Rachel Dratch, along with 30 Rock’s Judah Friedlander. Wiig spent much of the night on a sofa talking to a dark-haired male, while Matt Dillon happily spoke with fans who approached him.
Darren Criss – who stars in the film – was also present, but "remained subdued," says the source. He wore a black ribbon on his suit, perhaps to mourn the passing of his Glee cast mate, Cory Monteith who was found dead this weekend.
– Sara Hammel