Boom clap, the sound of my heart. The beat goes on and off and on and off.

Charli XCX is complicated as a singer displays the right kind of FU in her music in “The Moment.” And therefore, this is a big FU to “Hurry Up Tomorrow,” which was that infamous movie version of The Weeknd’s album of the same name. It’s an uneven mockumentary that doesn’t beat “This is Spinal Tap” at its own game, but it does have a lot of style and attitude that the singer specializes, and it does speak about the music industry in terms of its promotions and pressures.

Musicians have a lot of baggage, especially today when social media boosts their fame up and when practically everything has to be elaborate. The concerts, the costumes, and the album covers, and so forth. And while I was looking for more of a story in “The Moment,” it does have its moments. Pun intended.

It opens and closes with “Enter the Void” credits that move fast, flash a lot (“Flash Warning” as the film tries to warn people who suffer from epilepsy), present quick studio logos (A24, 2AM, Studio 365, and Good World), and change colors.

“Brat” is Charli XCX’s new hit single, and the record company (with Rosanna Arquette as the head) wants to keep the Brat Summer fad going. A lifetime if possible. Their best bet is a concert film. Johannes (Alexander Skarsgard) is the director helming the project, even though she is skeptical about collaborating with him. For one thing, he is patronizing. And another thing is he isn’t a big fan of flashy shows (“A night club is not a story. A night club is a night club, and when the night is over, it has to end,” he says), and tries to tone the show down a bit. Even he tries to present a song in a more family friendly tone, despite the fact that it’s about cocaine (“365” from the album). But he’s told that the target audience doesn’t want children or have fathers who don’t approve of their lifestyles.

Among the promotions (and Amazon Music is sponsoring the concert), the Howard Sterling credit card company has their cards the same color as the album, and there’s a suggestion that gay people who buy it will get free tickets to the tour. At one point, Charli asks her put upon manager (Jamie Demetriou) how the company will know their customers are gay, and even he has a skeptical answer. In fact, given the changes and twists that pop up, we doubt if this guy is going a good job.

Feeling overwhelmed by the promotions, product placements, and questions, Charli decides to take a 4-day break at a lavish spa. But even then, she starts to become stressed. After all, she singer described her fictionalized self as “sort of a Hell version of myself.” And a lot what happens seems to be a Hellish experience, but not the kind that The Weeknd suffered through, let alone the small audience, in “Hurry Up Tomorrow.”

It’s not a laugh out loud movie, but there are some funny moments that sneak into the flashes and raw and gritty cinematography by Sean Price Williams (“Good Time,” “Between the Temples”). We’re able to acknowledge the humor through the filmmaking process and commercialism that film is sinking the singer into. But we’re more interested in how Charli XCX is going to deal with her stress and how she can thrive through whatever happens before the concert film and tour.

“The Moment” is the directorial debut of Aidan Zamiri, who has worked with Charli XCX before and will probably do it again. I’m going to stop contrasting from “Hurry Up Tomorrow” in this review, and try to move on with this movie. The singer does some impressive acting, resembling her reality and what her music brings out of her, and never exploits it for entertainment purposes. In fact, there’s a moment that wisely uses The Verve’s “Bitter Sweet Symphony,” and tries to liven up her spirits a bit.