Twelve Nights is a 2000 Hong Kong romance drama directed by Lam Oi-wa (林愛華), main starring Eason Chan Yik-sun (陳奕迅) as Alan and Cecilia Cheung Pak-chi (張栢芝) as Jeannie. This movie goes through 12 significant nights (not consecutive nights) in a relationship between two characters. The movie offers some insight into the repetition involved in relationship cycles from interest through various tensions to eventual disinterest.

The love affair of a flight attendant (Cecilia) and a yuppie businessman (Eason) encounters 12 milestones affecting their relationship.