Things aren’t all dreamy in Katy Perry’s new 3D concert film. The pop star’s energetic Day-Glo performances and chart success tying Michael Jackson’s Bad with five # 1 singles from her album Teenage Dream are undercut by heartbreak.

She sobs uncontrollably backstage as her marriage to Russell Brand falls apart during her world tour, and talks about her dashed desire for fairy tale romance.    Perry co-produced Katy Perry: Part of Me and is now promoting it with the same energy she gave to the year-long California Dreams tour it documents.

Like Justin Bieber’s Never Say Never, the movie cross-cuts between concert footage and biography. It includes interviews with Perry’s friends, assistant, manager, makeup artist, Christian evangelical parents, and plenty of fans.

Brand is on screen in several scenes but his presence is reduced by the end mostly to phone and text messages.    In an interview, Perry spoke about sharing her side of the breakup on-screen, “Sometimes if you want to achieve something great, there will be curveballs. You just have to dodge them every once in a while.”