In 2017, the 15-year-old actress starred in two films that unspooled at the Cannes festival: Lynne Ramsay’s “You Were Never Really Here,” in which she co-stars with Joaquin Phoenix, and Todd Haynes’ “Wonderstruck.” It was a heady year for such a young and relatively inexperienced actress. On “Here,” which dealt with dark themes, the cast kept the mood light on set. “It felt like we were filming a comedy; we were laughing all the time,” says Samsonov, who started modeling at just 2 years old. She recently collaborated with French luxury brand Kenzo. “I’ve been doing it since before I can remember, it’s something I’m used to now, it just feels right,” she says. She dreams of being featured in a Chanel campaign one day.