Most Christopher Nolan films require multiple viewings to truly understand, as the director is a fan of non-linear stories that often include major twists. When fans heard that he was making a space travel film, they knew it was going to be a complex one, and his 2014 film Interstellar ended up being everything they expected. There are a lot of puzzles to solve in the film’s final act, and you will likely not understand the ending on your first watch, but we’ve got you covered.