Best Cinematography
There Will Be Blood, Robert Elswit
Robert Elswit won the American Society of Cinematographers award, beating Roger Deakins for two films, The Assassination of Jesse James by the Coward Robert Ford and No Country for Old Men. Though Deakins does have a chance to win the Oscar for either film, this is one instance where the much overused — and almost invariably absurd — "votes are split; a third party wins" logic actually makes sense. That's why I predict that Elswit will take home the Oscar.
Best Film Editing
No Country for Old Men, "Roderick Jaynes" (Joel and Ethan Coen)
An atmospheric suspense thriller that wins the best film Oscar will most likely also win for best film editing. If, however, Academy-ites feel that the Coens will be over-honored that evening — what with awards for best film, best directing, and best adapted screenplay — they may decide to give the film editing trophy to Christopher Rouse for The Bourne Ultimatum.
Best Original Score
Atonement, Dario Marianelli
Dario Marianelli's Atonement score has been widely praised, and it's already won a Golden Globe.
Best Original Song
"Falling Slowly" from Once, Music and Lyrics by Glen Hansard and Marketa Irglova
Until a few hours ago, there was some question whether "Falling Slowly" would be un-nominated because it might have been originally written for something other than Once. After phone calls were made, emails were sent out, and affidavits were received, the Academy decided that the song was indeed eligible. And it'll most likely win.
In terms of Sound Editing I don’t know why there is even any other nominees aside from Transformers. I know many are saying that There will be Blood should take the award however I disagree as there was barely any sound to edit in that film!!! Transformers on the other hand takes the cake as not only a great film but a great example of how a movie can be transformed( haha) with a exceptional sound editor.