Johnny Depp and Kevin Smith are to work alongside their own daughters on Smith’s new film Yoga Hosers, an action-adventure movie based around a pair of teen yoga fanatics.

Depp’s daughter Lily-Rose and Smith’s daughter Harley Quinn take the lead roles in the comic book-style film, in which the aforementioned yoga nuts must battle an ancient evil that rises from underground and threatens a planned party. Depp also stars as an ex-cop and man-hunter, Guy Lapointe, who aids the pair in their quest.

Smith, meanwhile, has written the film and will direct it, making it the second in a trilogy of films set in rural Canada. The first, Tusk, premieres at the Toronto film festival in September, and overlaps with Yoga Hosers. Depp again stars as Lapointe, this time helping out a duo whose friend, played by Justin Long, has gone missing after trying to interview a demented seafarer – who intends to turn him into a walrus.

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Smith had an unusual inspiration for Tusk, namely a Gumtree advert in Brighton that asked for a person to dress up like a walrus, and make walrus noises, for two hours a day at a private residence. Smith said it “got my creative juices flowing”, and he has reimagined the story as “an old British Hammer horror film”. In a letter to Smith confirming his involvement, Long described the film in vivid terms: “I didn’t think Ed Gein and Boxing Helena would ever fuck and have a more deranged baby.”

Tusk also features that spiritual core of Smith movies, the convenience store, where the characters played by Lily-Rose and Harley Quinn work. Following their appearance in Tusk, Yoga Hosers centres the action on them.

“People always ask me ‘Are you ever going to make a comic-book movie?’”, Smith said in a statement. “This is it – but instead of yet another dude saving the day, our antiheroes are the most feared and formidable creatures man has ever encountered: two 15-year-old girls.”

Harley Quinn Smith (left) and Lily-Rose Depp in Tusk. Photograph: Demerest Films

Yoga Hosers also features much of the Tusk cast, including Long, Michael Parks and Haley Joel Osment. It will also star Tony Hale, known for his hapless characters in Arrested Development and Veep, and Natasha Lyonne, currently enjoying a career renaissance for her role in Netflix series Orange is the New Black. Jason Mewes is also confirmed, perhaps hinting at the return of Jay and Silent Bob.