Anthropophagus
Joe D’Amato’s 1980 cannibal extravaganza (starring Tisa Farrow, Mia’s less-famous but cult-beloved sister) offers a convincing argument against taking any spontaneous trips to any remote islands, full stop—a caution that becomes even more urgent when one among your party happens to be pregnant. Let’s just say the events of Inside start to look tame once you add freaking cannibalism to the whole “ripping the baby out of its mother” thing.