Another Movie I am think of. This one being of a programmer and a computer. The programmer writes a simple AI program that will mimick any sound it hears.
The first sound it hears and mimicks of that of a dog barking. The dog hears it and get scrared and leaves a puddle on a floor. The computer then starts learning more and more sounds till which it attempts to take control of the house and the programmer.
It does such things as have a party at night, making it appear as though there are lots of people are there loud music and colorful lights. A neighbor comes out to yell, the computer turns it off, turning the sound back on as the neighbor goes back in.
The computer at the near of the end of the movie orders a electrical spike of 1 million volts therefore committing suicide, and blows out all of SanFrancisco's electrical grid. The end of the movie shows the computer taking control of a radio station and playing a song meant for the programmer and his girlfriend.