Two Champions of Shaolin(1980)

Shaolin warrior Tung Chien-chen is injured in battle against the hated Wu Tang clan, and nursed back to health by a knife-throwing master. As he recovers, Tung learns this deadly art, and also falls in love with his teacher's daughter. But when a Wu Tang attack disrupts the young lovers' wedding, Tung must put his new skill to use as he seeks revenge.