After watching a flash mob recreate the restaurant scene from 'When Harry Met Sally,' you'll want what they're all having.

'Improv Everywhere' staged a prank at New York's Katz Deli, the same restaurant Meg Ryan faked an orgasm at in 'When Harry Met Sally.' 20 women and their dates ate at the restaurant. All 20 reenacted the scene. The reaction of those not in on the prank are priceless.

I don't know about you, but if I was there, I'd definitely have joined in.