Brick

I watched this with my 14 year old son. Honestly, if this film were made in the 1940's, we would probably be studying it in film classes. The performances are top-notch, the story is thoroughly engaging, and the violence, although realistic, is never gratuitous. The story centers around a murdered teen with Joseph Gordon Levitt determined to find out what led to her death. The protagonist is an obsessive loner. He's not a traditional hero because he's patterned on figures like Sam Spade and Mike Hammer. This is a first film from director Rian Johnson who's best known as the director of Star Wars: The Last Jedi. For my money, Brick is a much better film.