Hastings was in the 1968 Universal film "Did You Hear the One About the Traveling Saleslady?" starring Bob Denver, as well as "The Bamboo Saucer" (1968), "Angel in My Pocket" (1969), "The Love God?" (1969) starring Don Knotts, and "The Boatniks" (1970). In 1971 Hastings was cast in the comedy movie "How to Frame a Figg", also starring Don Knotts, and also had roles in "The Poseidon Adventure" (1972), "The All-American Boy" (1973) and "No Deposit, No Return" (1976). Hastings also was in the 1978 movie "Harper Valley PTA" in which he played Skeeter Duggan, a member of the PTA board who had been kidnapped at the orders of its dishonest president to commit election fraud, and played "Cousin Phantom of the Opera" in the 1981 television movie "The Munsters' Revenge".