The really first robot appears in Metropolis of Fritz Lang, a German director, in 1927. Here the robot is a woman called Maria. This is the first robot in the 20th century’ cinema
The second must important robot appears in Forbidden Planet of Fred Wilcox, his name Robby the robot it lives on a planet far from Earth. It saves main character’s life. It is a Pop Culture icon.
The third is Hal 9000, an artificial intelligence just like “mother” in Alien. It helps the staff of the ship. It appears in 2001: A Space Odyssey of Stanley Kubrick in 1968.
One of the must advanced robots in movies are the androids in the Alien saga. They are made of a liquid and cables they mixed the biologic and robotic parts. They have a kind of “ self thought”, they can learn and interact with true people. In the first Alien (of Ridley Scott), one of them, is Ash, he is a full part character. He don’t have any motors inside of him there are articulations and some muscles.
In an other movie of Ridley Scott : Blade Runner, there is a robot character, this is a woman called Rachel, her creator made her quite human, she can give life but she can live only 4 years. She don’t know the fact of her creation she thinks she is human.