Lost Cause (2025): cast, story & where to watch
2025 · Film · ★ 8
Released in 2025, Lost Cause is a drama film directed by Poon Ka Fai, running about 25 minutes.
What it’s about. On, a primary school boy, seeks guidance from a Chinese chess scammer, who sets up endgames in the park. The two lonely souls find solace in their mentorship as they lie their ways out.
Who’s in it. Lost Cause stars Sean Wong Tsz-Lok as On, Mason Wang Shuai Quan as Uncle and Fonnie Ng as On's Mum.
How it landed. With an audience score of 8.0/10, Lost Cause sits among the best-reviewed titles in the catalogue.
Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch Lost Cause page.
If you liked it. Fans of Lost Cause tend to enjoy The Shawshank Redemption, The Godfather, Schindler's List and The Godfather Part II.
Frequently asked
- Where can I watch Lost Cause (2025)?
- Streaming, rental and purchase options for Lost Cause change frequently. Check our where-to-watch page for the latest availability in your country.
- Is Lost Cause worth watching?
- Lost Cause holds an audience score of 8.0 out of 10, and is a strong pick if you enjoy drama. Most viewers rate it highly.
- Who stars in Lost Cause?
- Lost Cause stars Sean Wong Tsz-Lok, Mason Wang Shuai Quan and Fonnie Ng.
- When was Lost Cause released?
- Lost Cause was released in 2025, with a runtime of about 25 minutes.