超时空同居
Gu Xiaojiao, a young girl from 2018 and Lu Ming, a man from 1999, discover that they have both woken up in the same bed at the same space-time. More surprisingly, they realize that they can time travel by exiting the bedroom door. The fun begins when they start to plan a number of changes within these two eras. However, they do not know that their destiny is in the hands of a mysterious person.
How Long Will I Love U (2018) is a comedy, romance, drama, mystery and fantasy film directed by Su Lun, released on May 18, 2018 with a runtime of 1h 41m. It stars Lei Jiayin, Tong Liya, Wang Zhengjia and Fan Ming. Viewers rate it 6.6 out of 10 across 53 ratings.
Watch the official trailer for How Long Will I Love U before you stream it.
Lei Jiayin
as Lu Ming
Tong Liya
as Gu Xiaojiao
Wang Zhengjia
as Gu Qixiang
Fan Ming
as Potato wholesaler
Xu Zheng
as Noodle
Li Nian
as Xiaoya
Li Guangjie
as Sicheng
Yang Di
as Waiter
Yu Hewei
as Scientist
Yang Le
as Xiao Ma
Tao Hong
as Store manager
Zhang Yi
as Zhao Junyi
Directed by Su Lun, written by Su Lun, produced by Liu Ruifang.
Average viewer score of 6.6/10 from 53 ratings.
How Long Will I Love U blends time-travel with romance in a smart and emotionally grounded story, executed with strong visuals, seamless transitions, and thoughtful attention to detail. Despite minor gaps in character resolution, the film’s performances and concept deliver a heartfelt narrative that earned critical acclaim. It reminds viewers that the future lies in our hands, but true success is found through…
Reviewed on September 18, 2025
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How Long Will I Love U (2018) is available to stream on Amazon Prime Video, Amazon Prime Video with Ads and Cineverse Amazon Channel, and to rent or buy from Amazon Video, Google Play Movies, YouTube and Fandango At Home. Streaming availability is checked against JustWatch data and can change by region.
The main cast of How Long Will I Love U (2018) includes Lei Jiayin, Tong Liya, Wang Zhengjia, Fan Ming and Xu Zheng. The film was directed by Su Lun. You can see the full cast and crew list, with character names, further up this page.
How Long Will I Love U was released on May 18, 2018 and runs for 1h 41m.
How Long Will I Love U (2018) holds an average rating of 6.6 out of 10 from 53 viewer votes, and is a good pick if you enjoy comedy, romance and drama films. Read the viewer reviews on this page to decide for yourself.
Yes. The official How Long Will I Love U trailer is embedded in the trailer section of this page and plays instantly, no download or sign-up required.
