Is there a way to use Netflix on PS3 without PSN?
If you click cancel when it asks you to log into PSN you will be fine. It usually takes 2 or 3 cancels but I am able to log into netflix just fine. I have heard on some of the older model systems, this will not work but there is a trick. If you clear out your BD-Data folder for some reason or another this seems to take care of it.
I've heard that Netflix on the PS3 will eventually give up trying to connect to PSN if you tell it to retry a few times, but I don't have Netflix on my PS3 so I can't test it.