Johansson stunned in a sequined Michael Kors gown with a keyhole cutout.
She posed at the event with fan Geraldine Dodd, who made headlines in April after a younger photo of her went viral for her resemblance to Johansson.
"Scarlett x #GrandmaGeraldine," Sony Pictures captioned a photo on Instagram of the pair holding up their "Hello, My Name is Scarlett" and "Hello, My Name is Geraldine" purses. "#RoughNightMovie."
"Rough Night" stars Johansson, McKinnon, Glazer, Kravitz and Jillian Bell as five friends who accidentally kill a male stripper during a wild bachelorette party in Miami. Lucia Aniello directed the film.
"I'd like there to be more people at this party," Aniello said of female-directed comedies in an interview with Vanity Fair in May.
"Comedy does seem like an especially hard place for women. You have to have the audacity of saying, 'My story is worth telling and my scripts are funny.'"
"They really trusted us to make the movie we wanted to make," she said of Sony Pictures. "It's a summer comedy, but there's blood and pretty intense stuff."
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