I'm not sure what's proper. In the stage world you're never supposed to say "good luck" -- "break a leg" is much preferred. (You're also not supposed to mention Macbeth, though that seems highly unlikely to come up in this situation.) The opera world depends on "Toi Toi Toi" to ensure good fortune. Someone once told me that Australians use "chookas" for the same purpose -- I rather like that one.

At any rate, best wishes to Hugo and all those representing it at the Oscars this weekend. Chookas three tois and a broken leg to you all!

Wait, I'm not sure that came out right ...

Warmly,

Doug