old sf movies with 2 robots, one round and one triangle

The explorer craft USS Palomino is returning to Earth after a fruitless 18-month search for extra-terrestrial life when the crew comes upon a supposedly lost ship, the USS Cygnus, hovering near a black hole. The ship is controlled by Dr. Hans Reinhardt and his monstrous robot companion, but the initial wonderment and awe the Palomino crew feel for the ship and its resistance to the power of the black hole turn to horror as they uncover Reinhardt's plans.

Charlie, a sleep-deprived office worker accidentally produces a black hole out of the photocopy machine - and then he gets greedy...

Starship C57D travels to planet Altair 4 in search of the crew of spaceship "Bellerophon," a scientific expedition that has been missing for twenty years. They find themselves unwelcome by the expedition's lone survivor and warned of destruction by an invisible force if they don't turn back immediately.

A 1991 recording of the jukebox musical Return to the Forbidden Planet at the West End's Cambridge Theatre, as based on Forbidden Planet and William Shakespeare's The Tempest.

Fictional story following the lines of a Frankenstein type horror movie: A grim scientist, when two of the robots he has created fall in love, orders his third robot to destroy the male one. The female robot subsequently seduces her creator scientist into drinking from a poisoned cup, and makes her escape..... Robot Three was awarded the Victor Saville Trophy (for most outstanding film) and the Alfred Hitchcock Cup (for best Fiction Film) at the 1952 Scottish Amateur Film Festival.

In a western-style setting, two robots stand off against one another.

A film by Francois Heysen about a brief fight between two robots

Two cyborg warriors face off in a battle to the death. ‘An eye for an eye’ is the least of it.