While Hamptons resident Sarah Jessica Parker was making an entrance, wearing a stunning Valentino at the Metropolitan Costume Gala Monday evening, hubby Matthew Broderick was at the 30th Annual Fred & Adele Astaire Awards Nominations party at the Lambs Club crosstown. Broderick was nominated for an Astaire Award for his fancy moves in Nice Work If You Can Get It, the new Broadway musical. He posed for photos with his director and choreographer, fellow Astaire nominee, Kathleen Marshall and Astaire Awards associate producer Carolyn Kendall Buchter. Southampton’s Buchter will co-chair the 30th Fred & Adele Astaire Awards on June 4 with Water Mill’s Alix Michel. Parker is joining forces with Tom Hanks, Michael Douglas and NBC Universal to make public service announcements in support of military veterans.