Katy Perry: Part of Me looks at the highs and lows of the singer's life as she tours the world. Cutforth revealed that Perry's split from Brand was a key component of the film.
"There was never really any discussion of taking out the scenes that are a bit more emotional, maybe a bit more difficult, a bit harder to watch sometimes. I think it was important to Katy," Cutforth told MTV News.
"People knew what she went through was not easy for her, and to make it look like it was would have been untruthful, and that's not her way," he continued. "So there was really no discussion about not including it."
Perry recently admitted that certain parts of the documentary make her uneasy, but she believes that she needs to show the world that she's not perfect.
The singer has said that she hopes the movie will inspire her fans to go for their dreams.
Katy Perry: Part of Me will be released on July 5.
Watch a trailer for Katy Perry: Part of Me below: