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

Searching for Matthew Vaughn

Is Kick-Ass available on iTunes, Amazon Prime, Netflix or Now TV?
Is Kingsman: The Secret Service available on iTunes, Amazon Prime, Netflix or Now TV?
Is Layer Cake available on iTunes, Amazon Prime, Netflix or Now TV?
Is Stardust available on iTunes, Amazon Prime, Netflix or Now TV?
Is X-Men: First Class available on iTunes, Amazon Prime, Netflix or Now TV?