josh hutcherson , and karen branigan , 29 , discovered they looked so alike that they could be identical twins earlier this week , they made headlines around the world .
but the irish pair are n't the only unrelated twosome to boast real life doppelgängers - and the celebrity world is no exception .
whether actresses liz hurley , 49 , and jacqueline bissett , 35 , and soap star dean gaffney .