[Despare]

What are you favorite endings that either weren't really the end or REALLY suggested that there would be a sequel. The former could be like Return of the King when they teased an ending oh, I don't know, three times? The latter maybe something like Flash Gordon when at the end you see the hand reach for the ring and there's laughter as a ? appears after the end or even something like Halloween where they peer over the balcony only to find Michael's body gone.