There are several methods of creating an illusion of a spoon spontaneously bending, without any apparent force applied to it by the illusionist.
The most famous spoon-bender is the Israeli-born Uri Geller, an alleged psychic who claims to be able to bend spoons, as well as other metal objects. He has numerous critics, though, especially in the scientific community, who claim he is both charlatan and con-man (see James Randi).
One example of spoon-bending in popular culture is the "There is no spoon" scene in the 1999 film The Matrix.