The film follows Perry through her California Dreams Tour while providing an insight into the singer's journey through stardom and detailing various aspects of her professional and personal life.

[2] It received positive reviews for successfully conveying an effective understanding of Perry as an individual, while also garnering praise for her willingness to allow audiences an up-close appreciation of her personal life.

The campaign offered consumers the chance to win trips to attend the world premiere of the film in Los Angeles, which included a live performance by Perry.

This film was rated PG "for some suggestive content, language, thematic elements and brief smoking" by the Motion Picture Association of America.

The critical consensus states: "Katy Perry: Part of Me succeeds on the strengths of the pop star's genuine likability, inspiring work ethic, and dazzling stage show, even if it plays somewhat like a PR puff piece at times.

[16] Audiences polled by the market research firm CinemaScore gave Katy Perry: Part of Me an "A" grade on average.

[17] Neil Smith of Total Film stated: "Despite being as garish and manufactured as Perry's multi-coloured hair-don'ts, Part of Me deserves kudos for allowing an element of unpredictability to intrude upon its tween exploitation and sugary vulgarity.

"[18] Elizabeth Weitzman of New York Daily News said: "Perry may be the world's most high-profile tease, but she sure knows how to show us a good time".

[20] Negative reviews included Mark Olsen of Boxoffice Pro's claim that: "this supposedly honest behind-the-scenes look at Perry's 2011 world tour often feels more like sharp brand management".