Kristen Stewart admits just the thought of watching her own movies "fills me with terror".

The Hollywood star - who is engaged to screenwriter and actress Dylan Meyer - would much rather put on a horror flick than watch any of her movies, including vampire teen fantasy saga 'Twilight', 'Spencer', and 'Charlie's Angels'.

She told Australia's WHO magazine of her ideal date night movie: "The Shining is a perfect date night movie for me.

"I love that movie. I love anything horror."

However, her worst nightmare would be watching any of her own films because she would be critiquing her every move.

She admitted: "It's just horrible!

"I'm always thinking about the millions of things I could have done more or different. The thought of watching myself on screen fills me with terror."

This month, Kristen revealed she was hospitalised with an anxiety attack after lying on her bathroom floor for hours unable to un-clench her fists.

The 33-year-old actress began suffering mental health issues after shooting to international stardom in the 'Twilight' movies and her anxiety got so bad she needed hospital treatment.

She told Rolling Stone magazine: "[At the hospital] they were like, ‘She’s dehydrated.’ I was like, ‘I’m not dehydrated. I’m ... flipping out.’ They gave me an IV and a mild sedative, and I started calming down and my hands started opening up, because you ... atrophy".

Kristen - who dated her 'Twilight' co-star Robert Pattinson, 37 - also suffered with insomnia and vomiting when her anxiety flared up, adding: "I was always like, ‘Who knows? I could spontaneously combust in a puddle of puke right now."

She concluded: "I loved to be sad ... Oh, my God. I made a complete art project out of it: my whole life."

Kristen's trouble sleeping continued for years until she met her fiancee, who helped get her into a healthy routine after they moved in together.

The actress explained: "When she moved into this house, I had no curtains, three forks, and I never drank coffee, and I was like: ‘I don’t sleep.’ She’s like: ‘In the morning, you drink coffee and you work, and you’re alive, and you’re awake, and then at night you close the curtains.’

"In retrospect, it was so obvious."