Gintama Movie 2: Kanketsu-hen – Yorozuya yo Eien Nare S01

The second film in the Gintama anime series: When Gintoki is working at the cinema, he discovers that someone is illegally filming the screen. He starts chasing this person and after handing them over to the law enforcement, he realizes he has entered a parallel world where the land of Edo has turned into a desert, and in this world, he himself is dead. He later finds out that the lawbreaker who was filming the screen was actually a swindler and a magician.