WASHINGTON - Some of Hollywood's top draws, including Oscar winners Michael Douglas (news) and Renee Zellweger (news), "Friends" cast member Courteney Cox (news) Arquette and actress Drew Barrymore (news), are playing supporting roles in the candidacy of a Kentucky Democrat. Their choice: Nick Clooney, father of actor George and brother of the late actress/singer Rosemary. The 70-year-old Nick Clooney, a former television anchor and newspaper columnist, raised nearly $500,000 in the first three months of this year, according to reports filed with the Federal Election Commission (news - web sites). A good chunk of the cash came from Hollywood's "A"...