'theme' being taking place in the same world, but different genre.

I liked the last ten minutes, but I admit it was pretty clunky...particularly the link to the other movie...suddenly it became a Spielberg movie.

But I do like the basic premise that you can have completely different genre shifts after one event (lets say Alien vs Aliens). They just gotta script it better...it felt like they had a solid separate script and threw that in the end just for shits and giggles. It worked for me, but I can see how it won't for many.