Sharon Stone loses her Basic Instinct for style with her ........

Hollywood star Sharon Stone appears to be losing her Basic Instinct when it comes to fashion with her sixties-style make-up.

The Casino actress battered her Twiggy-inspired smoky-eyes at the premiere of her latest film The Year of Getting to Know Us at the Sundance Film Festival last night.

Less than two months away from her 50th birthday, it seemed the actress' age was finally catching up with her.




Stone mismatched her dramatic smoky-eyed make up with her unflattering blonde flicked crop with her dressed-down ensemble.

Following the casual dress code of Sundance in freezing Park City, Utah, where temperatures have dropped to -10 Celsius, Stone's glamorous make-up looked out of place with her slate denim jacket, black leggings and ankle boots.

Stone joined her co-stars Jimmy Fallon, Tom Arnold and Illeana Douglas and director Patrick Sisam at the screening of their new comedy about a commitment-phobic man who reunites with his estranged father.

During her time at Sundance, Stone will have to be on her guard from activists from animal rights charity PETA (People for the Ethical Treatment of Animals), who have gathered outside screenings in a bid to shame fur-wearing celebrities.

Stone's love for fur has been well-documented and despite media pressure, the actress continues to wear her beloved animal pelts.

The actress' next movie project Dirty Tricks, set during U.S. President Nixon's rule, has been delayed due to the ongoing writer's strike in Hollywood.

During her time off, Stone has been reportedly romancing Miami restaurateur Shareef Malnik, as well as caring for her three adopted children, Roan, seven; Laird, two; and Quinn, 19 months.