I am not familiar with the case of Pierre Goldman but the movie is a good legal drama where emotions and dialogue are tense and engaging including great performances, atmosphere, and direction from Cédric Kahn. Kahn approaches the movie with a blend of drama and documentary style together which helps create the realistic setting and setting of the characters and event. The camerawork of 1:33:1 aspect ratio helps create an isolated feeling for the characters and the production is pretty good, while at times a bit cheap.
All of the performances were really good with Arieh Worthalter standing out with strong emotions and dialogue throughout. As well with the rest of the performances from the cast. The narrative is interesting with interesting themes and ideas explored, but it does prevent the movie from being excellent as some of the writing and narrative choices were a bit too thin and is the typical standard structure.
Throughout, the dialogue is well-written with a few being a bit too cartoonish, there are some pretty good balanced humor, and the pacing is tense. Despite some flaws, it is a good courtroom movie.