Maybe you have a new digital video camera, and you keep hearing complaints about your herky-jerky movements on film. Then you should sign up for Tripp Robbins' class on how to shoot and edit basic movies. Somewhere in between teaching English, Yearbook, and acting as Technical Theater Director on campus, Mr. Robbins has figured out what makes a good movie. Learn how to finesse your technique on Tuesday, September 12, 7 to 9:30 p.m. at Menlo School.