Teen actress Lindsay Lohan claims the fast-track to Oscar success is to "dumb" oneself down or "look ugly".

Having a passing dig at recent Oscar winners Charlize Theron and Nicole Kidman, the 18-year-old "Freaky Friday" star was quoted by Sky News as saying: "With movies now, it's very easy for a girl to dumb herself down or look ugly or be naked or be a lesbian or gain weight. Those are the ones that win Oscars."

Theron picked up an Oscar after gaining weight and enduring lengthy, gruelling daily make-up sessions for her role in "Monster".

Kidman's portrayal of Virginia Woolf in "The Hours" saw her don a prosthetic nose and dowdy clothing for the part. She won a best actress award too.

"The only one who didn't have to do that was Julia Roberts. And she never took her clothes off," Lohan said.