10 Horror Movie Questions That Will Never Be Answered

10. What Was The Alien Invasion? - 10 Cloverfield Lane

Even though Cloverfield was a monster hit (literally), there was initially little evidence to suggest a sequel was in the works. As a result, Matt Reeves' found-footage flick seemed like a one-and-done.

But while Bad Robot was working on a micro-budget production called The Cellar, it was decided to turn the film into a "blood relative" of Cloverfield called 10 Cloverfield Lane. It was nice to see Cloverfield being turned into a franchise, since there would finally be some explanation of where the city-destroying kaiju from the original came from.

Instead, the follow-up left more questions than answers, focussing on a woman, Michelle, trapped inside a fallout bunker with the deranged Howard. After Michelle leaves the bunker, she's attacked by an extra-terrestrial which she quickly disposes of. But as she rides off into proverbial sunset, a gigantic UFO is seen hovering in the sky, indicating the alien nightmare is far from over.

This was a pretty jarring way to end the movie, since it didn't tie in with the events in the first instalment. Though Cloverfield dealt with an alien being, the extra-terrestrial Michelle encountered had no resemblance to that monster, so it's not clear how they're connected.