Twinkle, Twinkle, Lucky Stars (1985)
The Five Lucky Stars, one of them being replaced by a younger brother, are assigned by the police to allow an actress with information on a crime syndicate to live with them while and Ricky (Yuen Biao) and Swordflower are to stay at the actress’s home undercover to capture the assassins. Throughout the course of the movie, the Stars chase the attractive woman around the house, though their efforts are largely unsuccessful.
At the climax, the three assassins eventually end up at a recreation building to take down Swordflower (mistaking her to be their target), but coincidentely Kidstuff (Sammo Hung) and his friends are there and they recognize one of them, with help from the actress. Muscle (Jackie Chan) and Ricky arrive in the nick of time and a showdown takes place, eventually ending with the protagonists victorious. The police and a large ensemble of Chinese actors arrive to congratulate them.
Starring: Sammo Hung, Jackie Chan, Yuen Biao, Richard Ng, Charlie Chin, Eric Tsang, Sibelle Hu, Rosamund Kwan.