Bipolar moms. shark senses, and bad Jamaican accents are all covered in this week’s How Did This Get Made? We welcome Jake Fogelnest to chat about a movie sequel that promises to be personal, Jaws 4: The Revenge! So be sure to join us for an important discussion on Mario Van Peebles’s fully improvised role, the lost cocaine/voodoo subplot, and an ending that did not benefit from being re-shot.