Worth it to get netflix ?

Getting a virus from downloading a movie is normally unlikely because most viruses need to stay in it's .exe format unless a the binder is advanced enough. Also unless you are downloading adware by accident, etc you should probably get yourself an adblocker, etc.

I would recommend Netflix just to be able to binge shows and watch random movies that are a bit old. However, if you are looking for the newest movies I would torrent them or get them at Redbox when you can.