It's not so much the tale itself as the slippery interplay between characters that makes Sliding Doors enjoyable. Ultimately, Sliding Doors becomes a victim of its own cleverness, shutting down all that early promise. Once the movie throws in a jolting, late-in- the-game plot twist that could have been borrowed from City of Angels, it never regains its balance. Give the movie credit for being a different sort of romantic comedy, but still one has to regret the failure of imagination. Take a supernatural premise, sap cinematic magic of any kind and the result is Sliding Doors.