Stunning classic, fabulous soundtrack, great acting, amazing shots- and young Harrison Ford as well.
A brilliantly observed film with Gene Hackman the observer - in one of his finest performances. An absolute must.
Harry Caul (Gene Hackman) is a highly regarded surveillance expert based in San Francisco; he specializes in wiretapping services. We are in the analogue world but, as the movie shows in great detail, electronic surveillance was already highly advanced, very effective and scarily intrusive in the 1970s (and one dreads to think the extent of it, today, in the internet age, as denounced by, among others, Edward Snowden). Harry Caul and his team work for a range of clients, usually in the private sector. They are given an assignment and carry it out, without asking too many questions. Caul prides himself on his professionalism and focuses on the technical aspects of the job; he appears to have no scruples or, rather, no interest in the actual nature of the cases he is asked to put together, or in the reasons his clients have for seeking the information that Caul gives them.
Caul and his team are hired by a mysterious corporate client to eavesdrop on a couple, seen walking around Union Square, in San Francisco. Despite the ambient noise, Caul works on the various tapes to the point where he has a clear recording of the couple's conversation. The meaning is ambiguous but Caul soon feels that his work may be used in a way that could have tragic consequences. The story develops from there.
Harry Caul is, really, a dull character and a loner (played very well by Gene Hackman). There is a strong technical angle to the movie, as the practical and technological conditions of the surveillance work are described in some detail. In spite of all this, the film is a gripping thriller. And, unlike many such movies, the story gets more interesting, more intriguing and more powerful as it develops, to reach its climax in the last 30 minutes of the film. Highly recommended.