Dory always did warn us that she’d just keep swimming, so it should come as no surprise that after splashing into our hearts in Finding Nemo she swam right off onto her next adventure: to find her long-forgotten but recently-remembered parents. The Dummies are submerging themselves in the deep blue along with a familiar found family and a whole aquarium of colourful new characters in this celebration of love, friendship, belonging, and seven-tentacled octopi.