She does NOT look 17. 

British actress Sienna Miller is desperate to land a role in a Hollywood musical, and will give up smoking and alcohol in a bid to achieve her dream. The party loving star has already been offered a role in a big-budget song and dance extravaganza, but knows she is going to have to calm down her wild ways in preparation for the strenuous shoot.

She explains, “I am looking at a musical role. I plan to take singing lessons and I know I will have to give up my bad habits, such as booze and cigs. A role has been offered, but I can’t say any more now.”

Isn’t that a poster of Sienna in the window?