King of Prism -Tri-Star Act- Film Announced for Franchise's 10th Anniversary

What was announced

On June 28, 2026, the official King of Prism account (@kinpri_PR) confirmed that an all new theatrical film, King of Prism -Tri-Star Act-, is now in production. According to the post, the project headlines the franchise's 10th anniversary, with the official account describing it as a completely new theatrical feature. A release date has not been announced.

The reveal arrived alongside a teaser video and a separate teaser visual, both unveiled through the official account. The King of Prism series has built its identity on splashy idol Prism Shows, and the new film leans into that legacy as it marks a decade since the series began.

What we know about Tri-Star Act

Per the official announcement, Tri-Star Act centers on a trio competition billed as PRISM.3, with the account teasing that a new battle is about to begin. The accompanying teaser visual carries the tagline "their bonds are now being tested," pointing to a story built around rivalry and partnership among its idol performers. The visual itself frames three of the series' pretty boys in a calm, summery setting beneath the new Tri-Star Act logo, a quiet beat before the competition the tagline promises.

Beyond that framing, concrete details such as the cast, staff, and runtime were not included in the announcement, and the official account asked fans to wait for further updates.

A 10th anniversary spotlight

The film was announced as part of the King of Prism Super Live Prism Tours event, the franchise's 10th anniversary celebration. Multiple outlets report that the anniversary marks ten years since the debut of the first film, King of Prism by PrettyRhythm, which opened in Japan in January 2016. King of Prism is the male idol focused spinoff of the Pretty Rhythm franchise, and it has since expanded across several feature films, stage plays, and other media. Announcing the project at the anniversary event places the new film at the center of the franchise's celebration, positioning Tri-Star Act as its next chapter rather than a one off commemorative piece.

Background

The most recent King of Prism entry in our catalog, King of Prism: Pride the Hero, continued the series' signature blend of competitive idol performance and over the top Prism Show spectacle. Tri-Star Act now extends that run into the franchise's second decade. With production only just underway and no premiere window confirmed, the teaser video and visual are the only concrete looks fans have for now, and the official account has signaled that more information is on the way.