Perry not ready to reveal all

London - Singer Katy Perry says she has not cut the scenes of her split with British comedian Russell Brand from her upcoming 3D documentary- concert film "Katy Perry: Part of Me", but has kept them limited.

She believes certain things should be kept between two people.

"I didn't get too detailed about the specifics because I believe that's only supposed to be between the two people that are in it," thesun.co.uk quoted the 27-year-old as saying.

"I just wanted to encourage people, to let them know that it's okay if they have problems. It's okay if they're going through a situation, they don't have to lay down and die, they can get through it," Perry said.

The documentary releases July 5.