One of the things I really liked, and I think only worked because it was a TV show and not a movie, was that instead of it being one person who knows what's going on and everyone else thinking they're nuts and not believing them, over time Winona Ryder and Mike both managed to convince the people in their lives of what was going on.

Also, I am so weirdly pleased that Steve didn't turn out to be a total shitheel!