For good fun...

Evil Dead - better yet, watch it when hungover and the screaming will drive you nuts....

Halloween - Of course, the original...

Near Dark - a good vampire flick....

After Dark - a good old fashioned thriller with one of the scariest scenes that will make everyone jump....but don't know if it would be good for something like a marathon....

And as always, all the old stand bys.....Frankenstein, Wolfman, Mummy, Dracula....

Here is something really interesting to do...Sometime watch Frankenstein, The Bride of Frankenstein and then the next one, (It might be Ghost of Frankenstein), not sure which it is, but you can see production values drop as you go and see even back then sequels blew.

When you do this you also get to see how good Frankenstein really is....

Have fun...