>>363672It's alright. As to the runtime, the first 45-60 minutes is basically a really long prologue. In the original story you get the main character's background from an internal monologue, so to avoid having to put that in the movie they frontloaded it with all of his past that's used for context in the main story. You don't even see the title card until you're that far through it already. The reason I mention this is to say that once you get through the opening it's paced like a regular two-hour movie.
If you're worried about being bored you should know it's a drama about a literal cuck trying to get the guy who cucked him to understand anguish by casting him in a difficult role in a play. It is slow and it is not filled with shocking twists and revelations, so if you're not into personal drama then skip it. Soundtrack is good but they couldn't afford the song that it's named after.