Sienna Miller's latest film has been blasted by critics - with one reviewer claiming the most memorable thing about the movie is the actress' "moustache."

The British beauty stars alongside Peter Sarsgaard in The Mysteries of Pittsburgh, which was released in U.S. cinemas earlier this week. But her performance has not done well in the States.

New York Post critic Lou Lumenick writes, "You know a movie's got problems when the most memorable thing about it is Sienna's moustache."

And the Boston Globe adds, "Almost nothing works in this movie." Other reviewers have also criticized Miller's American accent.

A reviewer for the New York Times says, "Just what accent Ms Miller is attempting is hard to guess."

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(This news article provided by World Entertainment News Network)