Basically this is the story from Suwa's point of view and some continuation after they save Kakeru. If you love Orange anime, you should try and watch this. If you LIKE the anime but not the kind of like that you want to watch it again, don't. The movie is more like an explanation of how the letters got into the past, what happened after they save Kakeru, what they write in the letters. I personally like this movie for I always wonder about those many things (especially how the letters are sent to the past) after I watch the anime. I have watch the anime againand still loving it. If you're not the type that enjoys watching after stories for 1 hour, don't watch. I suggest you find spoilers or ask someone about the movie and what happen in the future etc etc.

I find that the movie is much more heartbreaking that the anime. Why? Because it tells the "truth" from another person, Suwa, point of view. How big he actually involved in making this happen and how sad is his love story.