Lobo the Bastard (1971)

After Pot and his brother Ray rob a bank, Pot is arrested but is able to escape. He meets a bandit named Steve and they plot to rob another local bank, and with the help of an undertaker who digs his graves with dynamite, they successfully empty the safe. However, what Pot doesn't know is that Steve cooperates with Lobo, a Mexican bandit, who captures Ray in order to get all the money for himself.