Question:

While some spring forward, I choose to fall back.

Come and join me while you sit on a haystack.

I may show a movie with a crazed maniac,

I will for sure host a festival to give you a heart attack.

What am I?

Answer:

ɹǝqoʇɔO

Citations:

https://stock.adobe.com/search?k=october

https://www.upsidedowntext.com/

https://www.riddlesandanswers.com/tag/october-riddles/