British actress Keira Knightley blames her nervous disposition for creating her famous pout. The 23-year-old star is famed for her moody looks and pursed lips, but Knightley hates the look and insists she doesn't do it deliberately.

She says, "I think I was pouty when I was 16 or 17 when (my) first films came out and it's sort of stuck. I don't know, maybe I still do it. It's when I'm nervous and my neck gets really really tense and then that pressure sort of squeezes up to my lips and they push out and well, there you go, that's the pout."

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(This news article provided by World Entertainment News Network)