Why does video start playing before it is called in a pathway?

Hello,

I am trying to get the video to not begin playing until stage 1, but it starts right away. Any suggestions? Thank you!

PImage old;
import processing.video.*;
Movie movie;
int stage = 0;


void setup(){
size(500,500);
old = loadImage("old.png");
old.resize(500,500);
  movie = new Movie(this, "full.mov");
  movie.loop();
}

void draw(){
if (stage == 0){
  fill (255,0,0);
  rect (0,0,500,500);
  if ((mousePressed)&& (mouseX > 0) && (mouseX < 250)&& (mouseY > 0) && (mouseY < 250)){ //button on upper left side
    stage = 1;
  }
}

if (stage == 1){
 image(movie,0,0,500,500);
 image(old,0,0,500,500);

}

}

void movieEvent(Movie m){
  m.read();
}