Turning off action script Snow 3.0?

Hello, i put the snow 3.0 into one of my movies cause it looks sweet! but i dont know how to turn it off. I think it’s becaues the action used to activate it is in the scene that i want it and i thought that it would turn off in the next scene but it doesn’t… it just stays on. I guess its an action that is in a frame that will activate throughout the movie (unless i find the secret code to stop it!). Can anyone help me? Its the Snow 3.0 as made in the tutorial on this site by [FONT=Arial][SIZE=2][FONT=Arial]**Sam Kellett. Thanks, C