Sienna Miller is criticized for having unruly hair and bad teeth in a new documentary about Vogue Magazine that debuted at the Sundance Film Festival last week.

In the film, the maneating actress is seen working with Vogue editor Anna Wintour on the September 2007 issue, of which she was the covergirl.

“It must be awful for Sienna to see. Anna keeps complaining she is too toothy and the other staff are worried she has too many fillings,” one fan who saw the documentary.

“The editors hint at Sienna to cut her hair and she ignores them, which worried them even more. It was funny, but probably not for her.”