Wikipedia
Tam-Lin, also known as The Ballad of Tam-Lin, The Devil's Widow and The Devil's Woman, is a 1970 British film made by Commonwealth United Entertainment, Winkast Film Productions Ltd. and distributed by American International Pictures (AIP). It was directed by Roddy McDowall and produced by Alan Ladd, Jr. and Stanley Mann, from a screenplay by William Spier based on the traditional Scottish poem The Ballad of Tam Lin. The film had original music by Stanley Myers and a musical version of the original poem recorded by the British folk rock band Pentangle, and was photographed by Billy Williams. It was the only film directed by McDowall.
The film stars Ava Gardner and Ian McShane with Richard Wattis, Cyril Cusack, Stephanie Beacham, Sinéad Cusack and Joanna Lumley.
A newer release of this film (1998) ( Republic Pictures Home Video) re-cut the film to be closer to Roddy McDowall's intention.
McDowall's direction of this film precluded him from reprising his role as Cornelius in Beneath the Planet of the Apes, the only one of the original five Planet of the Apes films from which he is absent.