The model, 45, wore a glitzy pink sequinned top under a stylish plush coat in the same colour as she posed at the venue.
Katie donned a pair of blue denim jeans and boosted her height by opting for some gold heels.
Television personality Katie completed her look by carrying a cream handbag with her for the evening.
Katie’s on-off fiance Carl Woods was also spotted at the premiere, dressed in a plaid shirt and jeans.
Former glamour model Katie was joined by a host of stars at the Netflix documentary’s first public showing.
Being released on the streaming platform on November 22, the film takes a look at the one percent of the world’s population who are said to be psychopaths.
At the heart of the film is Lewis Raymond Taylor whose childhood was tainted by mental illness, sexual abuse and profound trauma.
Various offences led to numerous prison sentences and he was later diagnosed as a psychopath.
He was known for building business empire The Coaching Masters, a £20million life coaching academy and global community which could be found in 85 countries.
Katie posed at the premiere with TV personality Jessica Alves who looked just as glamorous in a black sequinned jumpsuit.
Jessica put on a very busty display in the outfit which featured a sheer panel to the front and silver studs across the shoulders.
She completed her look by carrying a silver handbag while she wore a pair of matching heels.
Elsewhere, television personality Precious Muir put on a very glamorous display in a sheer black dress.
The garment reached right down to the ground and she wore a pair of black heels to boost her height.
She wore a long black coat over her shoulders and carried a matching handbag with her.
The Psychopath Life Coach is released on Netflix on November 22.