after "kung fu", david starred in movies "death race 2000" (1975), with sylvester stallone, "cannonball!" (1976), bound for glory (1976), he plays the role of woody guthrie an american folk singer, "thunder and lightning" (1977), "the serpent's egg" (1977), director ingmar bergman, "gray lady down" (1978), "circle of iron" (1978).