As Elle Australia notes, Fanning and Minghella were first linked in 2018 after they were spotted holding hands in Italy. They most likely met for the first time on the set of indie drama Teen Spirit, in which Fanning starred as the lead, an aspiring singer looking to make her dreams come true via the titular reality TV singing competition, and which was Minghella's directorial debut. However, when the actress was asked by ET the following year whether there was anything romantic going on, she demurred, "We just really love working together."
Fanning described Minghella as "such a good friend" and confirmed she'd be thrilled to work with him again because he's an incredible filmmaker. Her director, meanwhile, stated, "I'm really grateful to have somebody as brilliant in this kind of dream project," confirming Fanning was "the only actress who could have carried" the movie. He also told Variety, "I'm so glad we found her," which may have come from him as a boyfriend just as much as a director. They became red carpet official after attending the 2019 Met Gala together, even posing for photos.
Since then, Fanning and Minghella have been photographed many times, sometimes holding hands, others simply walking side by side. They may not ever share their romance with the public, nor should they have to, but it's clear these two are crazy about each other.
