10 Best "Part One" Movies of All Time (Screenrant)

"Sometimes, a story is too epic or complex to fit into even a three-hour movie. From the emotional exploration of nuanced characters who deserve to gradually be developed to the rich world-building of fantasy or sci-fi tales, directors and writers occasionally need more screen time to tell a story right. Furthermore, filmmakers often face the challenge of doing justice to their sources, especially when these are beloved and acclaimed books. When properly executed, a "part one" movie is not a mere setup but a complete and satisfying journey that, even if it might work as a stand-alone piece, offers depth as part of a larger and more significant narrative. The best first-part films lay the groundwork for an even more thrilling conclusion. They welcome the viewer into their world and introduce them to the characters there, encouraging them to empathize and build a connection throughout the viewing experience." - screenrant.com