Most romantic celebrity kiss? The passionate kiss victorious Spanish goalkeeper Iker Casillas planted on his girlfriend, TV presenter Sara Carbonero after the World Cup final will be remembered for a long time to come by female football fans.

But the handsome Spaniard isn't the only man to show affection for his girl in a style worthy of the big screen. From Ryan Gosling and Rachel McAdams' swoon-inducing on-stage smooch at the 2005 MTV Movie Awards to Barack and Michelle Obama's tender election night embrace, these famous faces prove that for them love is always in the air.

Now you decide: which of these displays of affection would have you feeling weak at the knees?
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