It’s all shiplap and survival in Baltasar Kormákur’s romantic drama Adrift (C), but despite the game efforts of a spry Shailene Woodley and a fetching Sam Claflin in central performances, this castaway escapade doesn’t have anywhere to go. Mostly set aboard a damaged ship on the Pacific, the film cross-crosses between a central dramatic endurance challenge and flashbacks to the burgeoning love affair that took wind before everything gets swept into disaster. The real-life characters are underwritten and the filming pedestrian, sputtering with narrative navigation and propulsion issues. It’s not clear how the movie treads any new waters; but for fans of the indomitable sea and its rejuvenating spirit even in the face of adversity, this story has a few nice moments that surge out of the ordinary.