Katy Perry‘s 3D spectacle ‘Katy Perry: Part of Me’ is set to land at the multiplex (check the new poster) on July 5, but the singer has unveiled a preview clip featuring her family. Her sister Angela Hudson, as well as evangelical parents Mary and Keith, are on camera, discussing how they dealt with Katy’s explosive, runaway fame and her sexy image.

Russell Brand’s soon-to-be-ex-wife wasn’t lying when she said the film would show everything. In this clip, her sister reveals how Perry broke the news that ‘I Kissed a Girl’ was her first single, and her dad reacts to how it all went down!

First, her older sister recalls, When Katy decided’ I Kissed a Girl’ was going to be her first single, I asked her, ‘Have you told mom and dad?’ She said, ‘No, but can you?’” That’s rich. Pushing it off on her big sis. Safety in numbers.

Perry – who uses her mother’s maiden name — has never shied away from discussing her uber religious upbringing. Here, Mary and Keith, who look like stylish rockers, especially Keith, with his nerdy black glasses, express that they were concerned that her single choice could affect their ministry work, but they didn’t get all “extremists-in-Indonesia-when-it-comes-to-Lady-Gaga” about it!

Keith candidly says, “I was a little concerned, yeah, ’cause I thought my ministry after 30-something years is over. But, you know what? Never had a problem.” See, suggestive pop music doesn’t have to topple morals or crush faith…

Perry herself muses about the fact that “I think people love the idea of ‘a good girl gone bad.” But she’s not a bad girl, and no, her parents have not cast her out or cut off contact. Duh! They are in the film. She says, “They think my parents have disowned me, but that’s not the story at all.”

Want more Katy Perry? Well you can have it on June 19, when her new video for ‘Wide Awake’ premieres. For now, check out the fairytale preview here.

Watch Katy Perry ‘Part of Me’ Clip