Who Is Lauren Caster? The LA Filmmaker on a TikTok Mission to Get Strangers to Watch Her Movie

Lauren Caster spent five years making her first feature film. Then she had to figure out how to get anyone to watch it. “I have no idea what I’m doing,” the LA writer-director posted on September 15, 2026, Day 1 of a 30-day TikTok experiment she called “trying to convince strangers on the internet to watch my movie.” That first video passed 12,000 views. The movie is Rhythm Is a Dancer, and it’s based on her own life.

Who is Lauren Caster?

Caster writes, directs, produces and acts. Before her feature, she won TheWrap’s inaugural PitchFest in 2021 with her script You’re Not Supposed to Be Here, which Lifetime produced in 2023 with Chrishell Stause, TheWrap reported. Her debut short, Donor Baby, was acquired by Amazon after a festival run, and her short Plan C won a Grand Jury Award for Bold and Honest Filmmaking.

Rhythm Is a Dancer is the big swing. She wrote it, directed it, produced it and plays the lead. Her own summary of what it took: “Five years. Two kids. Countless rewrites. Cross country screenings. An incredible village. And somehow…..a movie.”

What is Rhythm Is a Dancer about?

Caster plays Ro, a young woman with a stalling dance career who goes home to meet her biological father for the first time. Ro’s mom, Susan (Amy Aquino of Bosch), is a lesbian who conceived her through insemination. Her dad is played by Tate Donovan. While Ro sorts out her unconventional family, a new job puts her alongside three spirited octogenarians who help her find her way back to herself. The cast also includes Marianne Muellerleile, Robert Costanzo and Beau Billingslea.

It’s close to home. “It is loosely inspired by my life,” Caster told Moveable Fest at the film’s Austin Film Festival world premiere in October 2025. “I am donor-conceived and my mom is a lesbian.” She met her own biological father in her late 20s, according to The Film Stage, and Moveable Fest notes he is one of the film’s executive producers. Much of it was shot in Santa Monica, including scenes with Donovan on the pier. “Wow, I feel like I really spent time with my dad,” she said of that shoot.

When did Rhythm Is a Dancer come out?

After its Austin premiere, the film was picked up by Circle Collective, an imprint of the distributor Utopia. It opened in theaters on July 10, 2026, with Q&A screenings featuring Caster and Donovan at the Laemmle Royal and Laemmle Monica Film Center in Los Angeles and the Roxy Cinema in New York. It went to digital on August 4, BroadwayWorld reported. In September she was on New York Live with Donovan doing press, and posted a clip of herself changing shoes outside Rockefeller Center afterward: “My 9 to 5 lately.”

Reviews have been mixed. Geek Vibes Nation gave the Austin premiere a 5.5 out of 10 but noted, “There’s sincerity in her performance as Ro.”

Why is Lauren Caster posting every day on TikTok?

Because a streaming release doesn’t market itself. On Day 30 she put it plainly: she’d spent five years on “a funny, heartfelt movie I love, and it felt like it was just sitting on streaming platforms in the dark. Invisible.” So she posted every day, testing the advice commenters gave her (“SAY THE DAMN TITLE”), explaining indie film financing (“Your money costs money!!!”), and pulling in friends to help.

She’s also honest about the tension. “I don’t particularly want to become a content creator. I’m a filmmaker,” she posted on Day 20. By Day 30, she said almost 5,000 people had joined her along the way. She isn’t stopping. On October 29 she started “Season 2”: “We may not have studio budgets, but we’ve got each other, baby.”

Where to find Lauren Caster

• TikTok: @laurencaster
• Instagram: @laurencaster
• Watch Rhythm Is a Dancer: official watch page and Apple TV
• IMDb: Rhythm Is a Dancer

Sources

• TheWrap, “Amy Aquino and Tate Donovan to Star in Lauren Caster’s Coming-of-Age Film ‘Rhythm Is a Dancer’” (April 15, 2024)
• Moveable Fest interview with Lauren Caster and the cast (October 28, 2025)
• Geek Vibes Nation review, Austin Film Festival 2025 (November 3, 2025)
• The Film Stage, exclusive trailer and release dates (June 3, 2026)
• BroadwayWorld, digital release announcement (July 27, 2026)
• Lauren Caster’s TikTok captions, September–October 2026.

Image credits: Lauren Caster portrait by Jonny Marlow (CC BY 4.0); Tate Donovan by Super Festivals (CC BY 2.0); Santa Monica boardwalk by Sharon Mollerus (CC BY 2.0); all via Wikimedia Commons. Videos are embedded through TikTok’s and YouTube’s official players.

Frequently asked questions

Who is Lauren Caster?

Lauren Caster is a Los Angeles writer, director, producer and actor. Her first feature film, Rhythm Is a Dancer, stars her alongside Tate Donovan and Amy Aquino. She also won TheWrap’s 2021 PitchFest with a script Lifetime produced in 2023.

What is Rhythm Is a Dancer about?

Ro, a dancer whose career is stalling, goes home to meet her biological father for the first time. Her mom, Susan, is a lesbian who conceived her through insemination. A new job puts Ro alongside three spirited octogenarians who help her reconnect with her family and herself.

Is Rhythm Is a Dancer based on a true story?

Loosely. Caster is donor-conceived, the daughter of a lesbian mom, and met her biological father in her late 20s. “It is loosely inspired by my life,” she said at the film’s premiere.

Where can I watch Rhythm Is a Dancer?

It’s available to rent or buy on Apple TV, Amazon Prime Video and Fandango at Home. All options are on the official watch page.

Who is in the cast of Rhythm Is a Dancer?

Lauren Caster (Ro), Amy Aquino (Susan), Tate Donovan (Ro’s biological father), Marianne Muellerleile, Robert Costanzo and Beau Billingslea.

What is Lauren Caster’s 30-day TikTok challenge?

Starting September 15, 2026, she posted every day for 30 days “trying to convince strangers on the internet to watch my movie,” sharing what she learned about indie film marketing along the way. She has since started a “Season 2.”