It's Oscars night in LA, so what does it take to make the best picture? Channel 4 News looks back at recent winners.

Channel 4 News has examined the nominated films for the best picture award from each of the last five years, to see which made the most at the box office, which cost the least to make, and which had the best budget to box-office ratio - and if any of these won the Academy award?

Academy Awards banner (Ciaran Hughes)