At the last count, the Academy’s 2,800 members shaped up in these categories: 601 actors, 228 writers, 142 directors,132 cameramen, 158 in the music branch and remaining members in the other branches, exec, p.r. etc. These figures should point up the weight of a single ballot in the nominations of “five best” — and the importance of voting, and of being an informed voter. (Fade in to today’s membership figures: 1,359 actors, 416 writers, 397 directors, 198 cinematographers, 250 music, plus the other branches for a total voting membership of 6,188. Polls close Saturday and the nominations will be announced 6:30 ayem PST, Jan. 31) … On the “Gambit” set (of director Ronnie Neame), Shirley MacLaine sez she’s invested in Berlitz records — to keep up with 9-year-old daughter Stephanie, studying in a Tokyo school where all the kids handle six languages. Soon as the film winds, she heads over to join the youngster and hubby Steve Parker. Costar Michael Caine is getting accustomed to our pace — and lingo. He no longer orders “chips” in the Universal commissary. “I stopped ordering ‘chips’,” he says, “after Shirley told me I’d have to go to Las Vegas to get ’em” … George Stevens, walking past the Cinerama Dome on Sunset where “Battle of the Bulge” is now playing and where his “Greatest Story Ever Told” had its long run, said he expects his pic to be on roadshow policy 10 years.