He Ain't Heavy, He's My Father (新難兄難弟) is a 1993 Hong Kong comedy-drama film starring Tony Leung Ka-fai and Tony Leung Chiu-wai, who are unrelated, playing father and son.

[1] Directed by Peter Chan and Lee Chi-ngai, the film also stars Carina Lau, Anita Yuen and Lawrence Cheng.

[4] The title is a pun on "He Ain't Heavy, He's My Brother", a hit single for The Hollies in 1969 and for Neil Diamond in 1970.

Through a flashback/time travel gimmick, Yuen meets his parents during their joyous courtship.

Yuen comes to understand and admire his dad, and reflect on his own moral defects.