FileBot

For years my movie collection has been basically designed around flat folder style(one big folder). I wanted to try use Radarr but that doesn't support flat folder structure. It needs to be setup so each movie is it's own folder. I've read that filebot can do this. My question is how can i do this? Is there a script or something already setup to do this?

Here's a tutorial from the Radarr wiki which should help you get started:
https://github.com/Radarr/Radarr/wiki/C ... ie#filebot

You can either properly process files as movies, having FileBot identify each file the usual way, or you can just process files as is in generic file mode. Either way, creating a folder structure boils down to custom formats.

e.g. in Movie mode: ny ... movie name / year

e.g. in File mode: fn ... file name