Lifetime released a sneak peek of The Unauthorized Saved by the Bell Story, a made-for-TV movie that claims to show what it was like behind the scenes of the popular 90s TV show.

The Unauthorized Saved By The Bell Story

The clip from Lifetime’s The Unauthorized Saved by the Bell Story shows stars of the teen show Mark Paul Gosselaar (Dylan Everett), Lark Voorhies (Taylor Russell McKenzie), Tiffani-Amber Thiessen (Alyssa Lynch), Mario Lopez (Julian Works), Elizabeth Berkley (Tiera Skovbye) and Dustin Diamond (Sam Kindseth) not getting along while posing for promotional footage. The scene is set to Bell Biv Devoe’s “Poison.”

While Zach (Gosselaar), Lisa (Voorhies), Kelly (Thiessen), A.C. Slater (Lopez), Jesse (Berkley) and Screech (Diamond) all got along reasonably well as students at Bayside, the dynamic between the actors was considerably more tense. Though the TV movie isn’t authorized, it’s based off of “hours of brand-new interviews conducted for this film,” according to Buzzfeed. Furthermore, Robin Lippin, the Saved by the Bell casting director, cast six actors playing the stars of the teen show stars.

Back in 2009, Diamond released a tell-all about the cast called Behind the Bell. Producers of Lifetime’s movie claim that the book is not the basis for the story that they’re telling. Furthermore, the rest of the cast is not “involved in any way,” according to Gosselaar, who now stars on Franklin and Bash.

The Unauthorized Saved by the Bell Story will premiere on Lifetime Sept. 1 at 9/8c.