I think the general assumption is that getting an Oscar nomination for Best Picture has a direct effect on profits. Krisztina Szucs put together a straightforward interactive that shows this isn’t typically the case.
Each bar represents a percentage of profit for a film. Roll over a bar, and you see three highlighted ones. The first represents the percentage of profit before a nomination, the second represents percentage of profit after a nomination but before the winner announcement, and the third bar represents percentage of profit after the ceremony.
So what you’re looking for is height before the red bar and after it. For impact level, you expect the third bar to be higher or at least the same as the first, but as you can see, most movies make the bulk of their profit in the beginning regardless.
