No kidding!

Nicole Kidman plays an "oversexed Barbie doll" in the murder drama The Paperboy, which premiered at the Cannes Film Festival on Thursday.

In the adaptation of the Pete Dexter novel, the Oscar winner plays trailer-trash bombshell Charlotte Bless, who is obsessed with a man on death row, and is drawn into a newspaper investigation into the prisoner, who may have been wrongfully convicted, triggering a frantic series of sexual encounters and a dangerous game of violence and death in the Florida swamps.

Two scenes in particular had critics chattering after a press screening. In one Bless urinates on Zac Efron's character after he is stung by a jellyfish, while the second is a bizarre portrayal of a sex scene set in a prison visiting room that involves no physical contact at all.

Kidman, in a figure-hugging vermilion dress for her Cannes photo call, was asked whether she found shooting the scenes embarrassing: "Strangely, no, because I had to step into a place to play the character where I didn't step out of it and look at myself, so it wasn't hard to shoot."