Joachim Trier's follow-up to 'The Worst Person in the World' stars Renate Reinsve, Stellan Skarsgard and Elle Fanning.

Charli xcx first declared a “Joachim Trier summer” at Coachella, and now Elle Fanning — one of the stars of his new film “Sentimental Value” — is doubling down. On Thursday, Fanning rocked a white T-shirt bearing the phrase to the Cannes Film Festival press conference for the film,

It took nearly until the end of the festival, but the Cannes Film Festival has its first outright sensation. Joachim Trier’s “Sentimental Value” premiered Wednesday night to the kind of rapturous response that Cannes is fabled for.