The association with Dean led to a career in films that would ultimately span 50 years and more than 100 films and TV shows , including Fantastic Voyage ( 1966 ) , A Man Called Horse ( 1970 ) , Beneath the Planet of the Apes ( 1970 ) , Battle for the Planet of the Apes ( 1973 ) , the animated version of The Lord of the Rings ( 1978 ) and on television Combat ! ( 1962-67 ) and Marcus Welby MD ( 1969-76 ) .