Why? Plummy Kristin was due to hang out in a women’s prison as research for her new movie role, but has since decided she’s not so much of a ‘method actress’ when faced with the prospect of being banged up with some scary dungaree-wearing criminal types.

“My initial instinct was that I must go meet women prisoners…Suddenly, it dawned on me what would happen if I went is that I, would be affected by the distress.”

Think that’s code for: “They would have beaten me up, so I bottled it.”