Keira Knightley on the edge of health

Super svelte star Keira Knightley flaunted her razor sharp collarbone as she stepped out at Thursday’s premiere of The Edge of Love. The naturally slim actress looked painfully thin showing off her ever-shrinking figure.

Sporting a strapless, rich purple number, Keira’s petite frame drew glances from the concerned crowd.

She arrived for the screening alone, but was later joined by co-star and close pal Sienna Miller.
Keira has always denied she has an eating disorder, blaming her skinny body on her genes. But with a body that rivals Nicole Richie’s, fans still worry about their idol.

Sexy Keira Picture