MovieTexture.Stop

function Stop () : void

Description

Stops playing the movie, and rewinds it to the beginning.

JavaScript
    // Assigns a movie texture to the current transform, plays it
// and when the user presses the *space* key, stops the video.
var movTexture : MovieTexture;
function Start () {
renderer.material.mainTexture = movTexture;
movTexture.Play();
}
function Update() {
if(Input.GetKeyDown(KeyCode.Space))
movTexture.Stop();
}