You get the spoiler of course!
There are two websites I go for movie spoilers (both of which are, now, run by the same guy)
First there's
The Movie Spoiler which gives full summaries of the film. I usually go to this site to read the plot of horror films, in which I want to know what happens, but I don't want to deal with watching the gore.
Next is
Movie spoilers galore! Moviepooper ruins the endings for hundreds of movies! which only summarizes the endings. I go to this site more often and read not only the endings of movies I don't want to see, but also the endings of films I've seen.