LOS ANGELES, May 7 (UPI) -- Billie Eilish: Hit Me Hard and Soft - The Tour Live in 3D, captures the energy of Eilish's concert. With occasional peeks behind the scenes, it highlights what goes into the performance and what it means to her fans.

As soon as the lights go down, thousands of phones light up, so the film already captures what it is like to go to a concert in 2026. Co-director James Cameron's cameras practically zoom in on the red record button on iPhones, but Eilish encourages people to wave their phone lights at other times.

What's striking about Eilish's stage presence, compared to filmed concerts like Taylor Swift: The Eras Tour, is how casual she is in front of tens of thousands of people. She is graceful in both her aggressive and subtle physical moves.

It is a well paced show balancing fast songs with ballads, and acoustic sets with full production. In one moment, Eilish harmonizes with herself on a recorded loop which only works if the stadium is silent, so her ability to quiet the arena is even more impressive than the other 113 minutes of raucous fanfare.

The stage is sparse. Her band and backup singers sit in lowered decks, leaving a long rectangle across which Eilish bounds back and forth to include everyone in the audience.