October 1. Suspiria (1977)
October 2. Nosferatu: The Vampyre (1979)
October 3. Halloween (1978)
It's not Halloween marathon without a Halloween movie in there somewhere. There's plenty to choose from, but with the new rebootquel coming out it's as good a time as any to revisit the original.
I'm used to seeing the TV version which added a couple scenes from running time. But the movie really doesn't need them, the pacing as is works perfectly. There's also something to be said for only seeing young Michael's face at the end of the prologue.
https://youtu.be/3LLO3Z0LzAo