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

Searching for Julie Andrews

Is Darling Lili available on iTunes, Amazon Prime, Netflix or Now TV?
Is Despicable Me available on iTunes, Amazon Prime, Netflix or Now TV?
Is Mary Poppins available on iTunes, Amazon Prime, Netflix or Now TV?
Is One Special Night available on iTunes, Amazon Prime, Netflix or Now TV?
Is Relative Values available on iTunes, Amazon Prime, Netflix or Now TV?
Is Shrek 2 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 Princess Diaries available on iTunes, Amazon Prime, Netflix or Now TV?
Is The Princess Diaries 2: Royal Engagement available on iTunes, Amazon Prime, Netflix or Now TV?
Is The Sound of Music available on iTunes, Amazon Prime, Netflix or Now TV?
Is Torn Curtain available on iTunes, Amazon Prime, Netflix or Now TV?
Is Victor/Victoria available on iTunes, Amazon Prime, Netflix or Now TV?