Find out if a film is on iTunes, Amazon Prime, Netflix or Now TV

Searching for Melvyn Douglas

Is Being There available on iTunes, Amazon Prime, Netflix or Now TV?
Is Captains Courageous available on iTunes, Amazon Prime, Netflix or Now TV?
Is Ghost Story available on iTunes, Amazon Prime, Netflix or Now TV?
Is Hud available on iTunes, Amazon Prime, Netflix or Now TV?
Is I Met Him in Paris available on iTunes, Amazon Prime, Netflix or Now TV?
Is Ninotchka available on iTunes, Amazon Prime, Netflix or Now TV?
Is The Americanization of Emily available on iTunes, Amazon Prime, Netflix or Now TV?
Is The Candidate available on iTunes, Amazon Prime, Netflix or Now TV?
Is The Changeling available on iTunes, Amazon Prime, Netflix or Now TV?
Is The Old Dark House available on iTunes, Amazon Prime, Netflix or Now TV?
Is The Tenant available on iTunes, Amazon Prime, Netflix or Now TV?
Is Twilight's Last Gleaming available on iTunes, Amazon Prime, Netflix or Now TV?