Question: do they ever get off of gilligan's island

Answer: Yes, Rescue from Gilligan's Island is a 1978 made-for-television comedy film that continues the adventures of the shipwrecked castaways from the 1964--67 sitcom Gilligan's Island, starring Bob Denver and Alan Hale, Jr., and featuring all the original cast except Tina Louise. The film first aired on NBC as a two-part special on October 14 and October 21, 1978. The film has the characters finally being rescued after 15 years on the island. The film was directed by Leslie H. Martinson.