Is Alec Baldwin a good sport? At a pre-screening cocktail party at Mary Jane and Charles Brock’s East Hampton residence, a property complete with croquet and golf courses, Alec Baldwin M.C.’d a competition, kids against adults putting on the green to benefit the Hamptons International Film Festival. Of course one of the kids was Sky Sudberry, a 9-year old from Texas, second place at the World Championship of Junior Golf at Pinehurst, N.C. with poise to kill and a killer grip. As she was planning her swing, Baldwin was hacking a pretend cough. Sky just took it in stride besting him in this lawn competition. She is, after all, one of 8 kid sport stars in a new movie, The Short Game, directed by Josh Greenbaum, to open on September 20. To put it mildly, the documentary is killer cute, and funny, and as Alec Baldwin put it at the Q&A following the Guild Hall screening, he learned a lot.