Robbie Williams has reportedly cut footage of Geri Halliwell out of his new film after an argument.
She was set to be shown presenting Robbie with a Brit Award last February.
The documentary Nobody Someday will be in cinemas from January 4 and will be shown on Channel 4.
Scenes of the pair at Robbie's house have also been edited out.
According to reports, Robbie was quoted as saying Geri's increasingly bizarre behaviour caused the rift.
"She turned into a demonic little girl playing with dolls and a tea set," he said.
"She started speaking like a psychotic child and developed this possessed look. It was genuinely scaring me. It was around that time I realised our friendship wasn't what I thought it was."