十萬火急 (Lifeline) (1997) (Blu-ray release 2015-8-18) is an old movie about a group of firefighter at a Hong Kong Fire Station. What’s so special about this movie is its realistic portrayal of the profession via their daily chores and several events, including the comedic rescue of a drunk woman who is trying to jump off a building. Some of the melodrama relates to their profession, e.g. the need to avoid pregnancy due to the nature of their jobs. It also explores the theme of whether firefighters should keep themselves safe first as their rules dictate, or risk their own lives to save other people.
Most importantly, it was made with real fire. Nowadays movies about firefighters are filled with CG fire. As awesome as good CG fire can be, real fire is just real. It simply feels different. If I remember correctly, when this movie was made, its climactic factory movie fire became real fire, and required real firefighters, who were performing as extras on the set, to deal with the situation. Especially when contrasted with the similar but disappointing movies from Hong Kong in recent years, this classic movie is clearly much better.