The Twins Effect II is a 2004 Hong Kong action fantasy adventure film directed by Corey Yuen and Patrick Leung.

The film is set in Flower Capital, a land ruled by an evil queen (Qu Ying) who started hating men after her lover, High Priest Wei Liao (Daniel Wu), betrayed her.

However, a prophecy foretells that one day, the Star of Rex will find and wield a mythic sword, rise to power, overthrow the queen, and restore the balance of the two sexes.

Before they can meet Crouching Tiger Hidden Dragon, they are intercepted by two lovely, but lethal, female warriors, Spring (Charlene Choi) and Blue Bird (Gillian Chung), each of whom is pursuing the pair for different reasons.

The journey takes them through dangerous terrain, culminating in an encounter with the Lord of Armour (Jackie Chan), who guards the way to the sword.