https://www.chinesechristiandvds.com/
Please put the word Eric or Liddell in the search engines on the websites below. You will probably find more titles.
26 Martyrs
Christian Cinema
https://www.christiancinema.com/digital/movie/26-martyrs
https://www.christiancinema.com
English
All That Remains
https://www.christiancinema.com/digital/movie/all-that-remains
https://www.christiancinema.com
English
Beyond the Chariots at the Singapore Expo
https://www.christiancinema.com/digital/movie/beyond-the-chariots-at-the-singapore-expo
https://www.christiancinema.com
English
Eric Liddell: Champion of Conviction
https://www.christiancinema.com/digital/movie/eric-liddell-champion-of-conviction
https://www.christiancinema.com
https://www.visionvideo.com/dvd/501234D/eric-liddell-champion-of-conviction
https://www.amazon.com/Eric-Liddell-Conviction-Vision-Video/dp/B002TUMF7U
https://www.icmbooksdirect.co.uk/product/15293/dvd-eric-liddell-champion-of-conviction
English
On Wings of Eagles
https://www.visionvideo.com/dvd/51715D/on-wings-of-eagles
English