Revenge of the Patriots (1976)

Bruce Li stars as a Chinese escort for the former Princess of the Ming Dynasty. After the death of their leader, they must escape the city with the last will and crowned jewels of the former ruler before the new Ching king catches them. They hide the treasure inside a dead pig and send it down the river. The Ching's discover the plan and meed the Ming Patriots on the riverbanks for a showdown.