The film, about a party girl who feuds with her dead boyfriend’s mother, is based on a novel by Janet Fitch, which Amy Poehler recommended to Ms. Tamblyn 10 years ago. “It was a constant uphill battle all the way up to shooting it,” she said. “I understand who I am now in a larger way. I never really felt like I knew who I was as an actress.”
Mr. Cross joined her at the subway pole. They met at an awards show, they explained, then crossed paths again when Ms. Tamblyn was shooting a film in the East Village, where he was living.
“I gave my number to the P.A.s and said, ‘If she’s looking to find out anything about New York, she can give me a call,’” he said. She never called, but about a year later they saw each other on a plane to Shreveport, La., where she was shooting “Beyond a Reasonable Doubt” and he was doing “Year One.” They wound up at a bar where it was swingers’ night.
“We were like, ‘These people are so friendly and nice!’” Ms. Tamblyn said.
Their subway pulled into Rockefeller Center around 6:45. Ms. Tamblyn had a friend waiting outside Radio City Music Hall with jewelry. “Curbside delivery!” Ms. Tamblyn said, choosing a bracelet from one of the zippered plastic bags that an antique-jewelry purveyor named Carrie Imberman pulled from her coat pocket, as if doing a drug deal.
Ms. Imberman eyed Mr. Cross and deadpanned, “You’re wearing your fancy sweater.”
Arriving at MoMA just in time, Ms. Tamblyn hurried onto the red carpet, posing with her friend Amy Schumer and the film’s stars, Alia Shawkat and Janet McTeer. After the screening, more famous friends joined her for…