Here's my cast for a Godfather remake in 2008. What do you think about it?
Also: I couldn' find actors for Tom, Luca and Sollozzo.

Fredo – Leonardo di Caprio
Michael - Jason Biggs wink
Barzini - Al Pacino
Bruno Tattaglia - Steve Buscemi
Phillipp Tattaglia - Harvey Keitel
Vito Corleone - Robert de Niro
McCluskey – Bruce Willis
Mamma Corleone – Talia Shire
Kay Adams – Scarlett Johansen
Woltz – Dustin Hoffman
Sonny – Brad Pitt
Moe Greene – Johnny Depp
Clemenza – Harvey Keitel or Danny DeVito
Tessio – George Clooney
Don Tommassino – Roberto Benigni
Johnny Fontane - John Lurie
Tom – ??
Sollozzo – ??
Luca Brazi - ??