Martin Weinstein is leaving his post as Turner Home Entertainment senior vice president of domestic homevideo, THE exec VP Steve Chamberlain confirmed earlier this week.Weinstein–the first employee hired for the video distributing subsidiary of Turner Broadcasting System Inc. when it was started in 1988 — will stay on with THE for about another month, according to Chamberlain. Taking over Chamberlain will be assuming Weinstein’s responsibilities until a replacement is selected. Weinstein is said to be headed to Gotham-based indie GoodTimes Home Video in a top executive slot, though GoodTimes prexy Joe Cayre did not return phone calls and Weinstein was unavailable for comment. “It’s a great opportunity for Martin and we wish him well,” said Chamberlain. Turner restructuring? Meantime, an industry source said that a restructuring may be in the wind among Turner’s top management, though Turner Entertainment Group president Scott Sassa was unavailable for comment yesterday. During his tenure, Weinstein was responsible for helping the label launch the 50th-anniversary edition of “Citizen Kane” and the 60th-anniversary edition of “King Kong.” Before joining Turner, Weinstein was Eastern regional director for Nelson Entertainment.