I saw the movie Beverly Hills Family Robinson. It stars Sarah Michelle Gellar (Buffy The Vampire Slayer) and Martin Mull (Sabrina The Teenage Witch).
The host of a TV cooking show, takes her family on a working vacation to a South Seas Island, but their yacht is hijacked by pirates, and then shipwrecked, and her family must survive their mom's complaints while they build a treehouse, meet a handsome carpenter, bond together as a family and fight off the pirates.
I give this movie 3/5 stars.
It was pretty good. Loved that Sarah Michelle was in it.