http://imdb.com/title/tt0082146/

Caveman (1981)
5.7/10 from 5638 users Updated : 2016-06-13
Rating: 4.3/10
[fresh!] 24% [audience liked it!] 54%
Comedy , Sci-Fi
Ringo Starr , Dennis Quaid , Shelley Long , Jack Gilford , Cork Hubbert , Mark King , Paco Morayta , Evan C. Kim , Ed Greenberg ,
Carl Lumbly , Jack Scalici , Erika Carlsson , Gigi Vorgan , Sara López Sierra , Esteban Valdez
Carl Gottlieb
91
1981
A simple caveman accidently becomes leader of a clan of cavemisfits and outcasts. But he ultimately wants to outsmart the bigger| stronger leader of his former clan
and win the affection of a beautiful cavewoman.