Keira Knightley Jealous Of Sienna Miller

Keira Knightley has admitted that she�s jealous of Sienna Miller�s social graces.

The pair appear in the film �The Best Time of Our Lives�, where Miller plays poet Dylan Thomas� wife Caitlin McNamara. The film is currently shooting in West Wales.

Knightley has said she often envies Sienna�s bubbly personality when at parties, and hopes that when she talks to her, some of it will �rub off� on her as she often feels uneasy at premieres and public events.

Then again, we�re sure that Sienna is also jealous of Keira�s acting ability.