Ok I dont remember anything about this movie EXCEPT that it takes place in this high school and different parts of the high school are like gateways to other time periods or dimensions or something. This one part these kids walk into the gym and its a jungle. I think they were taken to the vietnam war or something. This movie might also have zombies in it. I might be mixing it up with another movie but I remember these kids trapping all these zombies in the school pool then electrocuting them all. If its two different movies then help me identify that one too. These were both great late night movies, worthy of svenghoulie himself.