Original Screenplay
Milk 31%
Wall-E 21%
In Bruges 17%
Happy-Go-Lucky 17%
Frozen River 15%
Adapted Screenplay
Slumdog Millionaire 33%
The Curious Case of Benjamin Button 19%
Frost / Nixon 16%
The Reader 16%
Doubt 15%
I love the structure used in telling the story of Slumdog Millionaire. No screenplay 101 (in my opinion) in telling the story. Both Frost/Nixon and Doubt are adaptations of stage plays and latter winner of the Pulitzer Prize and the Tony Award for Best Play, but that doesn’t mean anything in Hollywood.
Both Screenplay categories didn't seem so cut and dry to me this year. I liked "Happy-Go-Lucky", but with Mike Leigh's admitted and documented very improvisatory approach to directing
and dialogue, I always wonder just how many of those words actually came from Mike Leigh, and how many came out of the actors' improvisations. -I haven't read much about the making of this particular movie, so I could be totally off-base here. However...
Yes, "Benjamin Button" was based on a short story by F. Scott Fitzgerald, but Eric Roth and Robin Swicord really expanded and transformed and transplanted the story to more, very recent time. There was a lot of "original" work, imho. I even had a similar problem with "Milk" but in the reverse, since so much of the film's structure was based on the actual historical events, and the inclusion of news and documentary footage. -But that's truly a small quibble.
At least on Broadway, there's no such distinction made when it comes to shows based on previous historical events or literary or theatrical sources.