I haven't read the manga. I've only watched the anime. My review is based on a comparison of the film to the anime.
I enjoyed the anime adaptation very much, so I was eager to see the live action film. The production was well cast and the actors portrayed their roles very well. The screenplay, however, was a disappointment.
I anticipated some differences between the movie and the animation. I was unprepared for how different it would be. It isn't a case of the anime brought to life, it's something else. The movie felt rushed to attempt to include most of the story in one feature film. Many scenes from the TV series were rewritten, combined or omitted completely. Plot elements that supported transitioning between scenes were missing. It felt like I was watching a series of clips with no connection from one scene to the next. A lot of character development and background was left out. It gave me a feeling of being profoundly incomplete. A feature film series may have served this story in a better manner.
It isn't the anime. It's quite different. The film is entertaining and worth watching.