I'm not quite sure that I'd consider Death on the Nile a halloween movie but ok. It's always interesting to see what other people put on these lists.
There's definitely some great halloween films on these though.
The Witch…………………………..1
Great Pumpkin…………………….5
Edward Scissorhands…………….4
Pet Semetary………………………4
Little Shop of Horrors ……….……3
There‘s Someone in Your House...1
Insidious……………………….……3.5