Q: You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.
Hitchcock directed, produced and wrote some of the greatest suspense films of all time. His career spanned from the 1920's to the 1970's. His classic films include "Psycho", "Rear Window", "Vertigo", "North by Northwest", and "The Birds". He also hosted two groundbreaking suspense anthology series on television.

It would be difficult to overstate the influence Hitchcock had on the industry. His showmanship, his cinematography and his approach to suspense are felt to this day, recently in Gus Van Sant's shot-by-shot recreation of "Psycho".
A:
What was Alfred Hitchcock's contribution to the movie industry?