While Harmony of the Seas does not have a traditional, dedicated cinema like some older ships, it offers a diverse range of high-tech "screening" venues. The massive Royal Theater frequently hosts movie screenings on its high-definition screens when it isn't featuring Broadway-style shows like Grease. For a more immersive experience, the AquaTheater at the back of the ship features two giant LED screens that project films and sporting events against the backdrop of the ocean. Additionally, the ship offers a "Movies Under the Stars" experience on the pool deck, where guests can watch blockbusters on a large outdoor screen while lounging in the sea breeze. In 2026, the ship’s in-stateroom entertainment system also provides an extensive library of on-demand movies, ensuring that while there isn't one single "theater room," there are plenty of ways to enjoy a cinematic experience during your cruise.