'My Big Fat Greek Wedding's' Nia Vardalos and John Corbett are awkward in their second pairing. Vardalos' directorial debut hampers the cliched romantic comedy. The title implies a cheeky slap at sentiment, but "I Hate Valentine's Day" comes from Nia Vardalos, the plucky writer and star of the highest-grossing romantic comedy in film history, "My Big Fat Greek Wedding." Nobody should be too concerned that cornball lovey-doveyness is in for a trip to the woodshed.