尋秦記
To save tomorrow, they must survive yesterday.
In the Qin Dynasty, time-traveller Hong Siu-lung has lived in seclusion with his family for twenty years. Yet every step he takes remains under the watchful eye of his former disciple, now the Qin Emperor. On the brink of ultimate power after conquering the six warring states, the emperor is suddenly ambushed by a mysterious team wielding advanced weapons clearly originating from Hong’s time. Drawn together by fate again, Hong and Qin Emperor are forced to confront the long-buried conflict between them, because the future now depends on how they settle their past.
Back to the Past (2025) is a science fiction, action and comedy film directed by Ng Yuen-Fai, released on December 31, 2025 with a runtime of 1h 47m. It stars Louis Koo, Raymond Lam Fung, Bai Baihe and Jessica Hsuan Huen. Viewers rate it 6.0 out of 10 across 28 ratings.
Watch the official trailer for Back to the Past before you stream it.
Official trailers, teasers, clips and featurettes for Back to the Past.
Trailer
Teaser
Featurette
Featurette
Featurette
Featurette
Louis Koo
as Hong Siu-lung
Raymond Lam Fung
as Chiu Poon / Majesty
Bai Baihe
as Galie
Jessica Hsuan Huen
as Wu Ting-fong
Sonija Kwok Sin-Nae
as Kam Ching
Joyce Tang Lai-Ming
as Sin-yau
Michael Miu Kiu-Wai
as Ken
Louis Cheung
as Stone
Kevin Chu Kam-Yin
as Bowie
Wu Yue
as Max
Timmy Hung Tin-Ming
as Phill
Chris Collins
as Tim
Directed by Ng Yuen-Fai, written by Lily He, produced by Tang Wai-But, Charles Heung and Astrid Chan Chi-Ching.
Average viewer score of 6.0/10 from 28 ratings.
“Ken” (Michael Kiu Wai Miu) has been the victim of an injustice that saw him spend twenty years in jail. Now free, he has decided to avenge himself on those who stitched him up and so together with his daughter “Galie” (Baihe Re) and a couple of less than scrupulous cohorts he invades a top secret scientific facility and uses their time machine - which he helped develop - to return to the Qin dynasty and seize the…
Reviewed on January 4, 2026
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Back to the Past (2025) is available to stream on Mewatch. Streaming availability is checked against JustWatch data and can change by region.
The main cast of Back to the Past (2025) includes Louis Koo, Raymond Lam Fung, Bai Baihe, Jessica Hsuan Huen and Sonija Kwok Sin-Nae. The film was directed by Ng Yuen-Fai. You can see the full cast and crew list, with character names, further up this page.
Back to the Past was released on December 31, 2025 and runs for 1h 47m.
Back to the Past (2025) holds an average rating of 6.0 out of 10 from 28 viewer votes, and is a good pick if you enjoy science fiction, action and comedy films. Read the viewer reviews on this page to decide for yourself.
Yes. The official Back to the Past trailer is embedded in the trailer section of this page and plays instantly, no download or sign-up required.
