Katy Perry Unveils Part Of Me 3D Concert Movie Full Trailer - Video

4 April 2012, 07:54 | Updated: 4 April 2012, 08:07

The 'California Gurls' singer has premiered the full promo video for her first documentary film.

Katy Perry has unveiled the full-length trailer for her upcoming 3D concert movie Katy Perry: Part Of Me.

The 'Firework' singer is set to launch the documentary film this July giving fans the chance to see behind the scenes on her globe-trotting 2011 'California Dreams' world tour.

"Are you READY? SET? GO! The FIRST full trailer for #KP3D," the 'Part Of Me' singer tweeted last night.

The brand new promo trailer follows yesterday's (2nd April) 30-second teaser trailer, and suggests parts of the film will address Katy's divorce from comedian husband Russell Brand.

The 'Teenage Dream' singer will also treat viewers to a look at her life before making it big in the music industry, as well as discussing her strict Christian upbringing.

Katy Perry: Part Of Me 3D is expected to be released in cinemas in the US on 4th July weekend.

Watch the brand new full trailer for Katy Perry: Part Of Me 3D below: