The Conversation (1974)

Gene Hackman acts in this early film noir that helped sustain his status as a serious actor. He plays a wire tapper private investigator who stumbles upon a crime that is going to happen. Throughout the film he struggles with what his action should be as his job could facilitate the crime. Some great twists.

The ideas of incomplete pictures and what we should and shouldn't have access to give the film some great depth.

IMDB