It appears that that domain is registered with tucows and per the owners request is listed as protected. You will need to contact tucows to see if they can release that information to you. Below is the report I ran.
Registrar Infocache expires in 1 days, 0 hours, 7 minutes and 11 seconds
Registrant Contact Information:
International Content BV
State / Province
Administrative Contact Information:
Technical Contact Information:
Information Updated: 2016-08-01 16:27:19
It does appear to be a Canadian owner though.
Hello! My name is*****I am a certified computer professional who will assist you with the problem you described.I was able to find the contact information for the webmaster at nubilefilms.net.
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Hello again!Several days have passed since I sent you my answer, and you haven't replied to my last message, so I am wondering if you received my answer or not?Let me know by sending me a reply below.Thanks,IT Miro