Deliverance is known for its “dueling banjos” scene, its degenerate hillbilly trope and its brutal male-on-male rape, in which Ned Beatty is ordered to “squeal like a pig” while being anally raped.
In Network Beatty plays an executive who gives a speech on the nature of capitalism.
This is also a good time to call to mind that in the novel Deliverance on which the film of the same name is based, the dictum “there exists at the basis of human life a principle of insufficiency” by Georges Bataille, is used as epigraph in the original French.
Miklós Jancsó directed many well respected films but you can find a copy of the less respected but more interesting Private Vices, Public Pleasures (1976) by googling for it. You will find it on a well-known porn website. The film is, along with similar outings such as The Beast (1975), typical from European sexual revolution cinema.