Lionsgate is making a new bet on digital star power: The studio has acquired “Dirty Thirty,” a comedy film starring YouTube phenoms Grace Helbig, Mamrie Hart and Hannah Hart.

The film — about a birthday party that goes off the rails — will reunite the stars and production team behind “Camp Takota,” one of the first movies to feature big-name YouTube talent.

“As we build out our original digital offerings, we continue to look for projects that fit Lionsgate’s brand as a leader in supplying the next generation of global content and ‘Dirty Thirty’ perfectly fits that mandate,” said Jordan Gilbert, director of digital programming at Lionsgate. “Grace, Mamrie, Hannah and the entire team have proven that they understand the digital audience and we are excited to be working with them on this long-form digital feature.”

The three YouTubers added: “We wanted to expand off the success of ‘Camp Takota’ by bringing in a major studio. Lionsgate is a perfect partner because they are a big player, but they’re a young studio who will support our creative vision and take chances. Plus, they approved our snacks budget.”

“Camp Takota,” released in February 2014, spurred other producers and studios to sit up and take notice and spawned a wave of movies with digital stars. One of the attractive benefits: Internet celebs bring large social followings to the table, providing low-cost marketing and a built-in fanbase for the movies.

This summer, “Smosh: The Movie” featuring the comedy duo of Ian Hecox and Anthony Padilla briefly took the No. 1 comedy spot on iTunes, and AwesomenessTV’s “Expelled” starring Cameron Dallas registered as the overall top movie download on the service with its release last December.

Former Fullscreen chief content officer Michael Goldfine (“#O2LForever” and “The Outfield”) will produce “Dirty Thirty” under his Michael Goldfine Productions banner, and Ken Treusch and Vincent Nastri will serve as executive producers; Helbig, Hart and Hart will also exec produce. IMG Films is executive producing the project. Andrew Bush (“Roller Town”) directs from a script by Mamrie Hart and Molly Prather.

Lionsgate plans to distribute “Dirty Thirty” via multiple digital platforms, including electronic sell-through and subscription VOD services. Pre-production on the film begins this week, and fans will be able to follow the progress at DirtyThirtyMovie.com

WME and CAA brokered the deal for the movie with Lionsgate. Hannah Hart is represented by UTA, Bleecker Street and attorney Ryan Pastorek. Helbig is repped by WME, Bleecker Street and attorney Melissa Fox. Mamrie Hart is repped by CAA, Bleecker Street and attorney Melissa Fox. (Mamrie Hart and Hannah Hart aren’t related.)

Among other collaborations, Helbig and Hannah Hart are starring in the Legendary Entertainment-Fullscreen reboot of ’70s campy superhero action TV series “Electra Woman and Dyna Girl.”