Hi i have got 2 files 1) shell.fla and 2) box.fla. The shell.fla will load the box.swf.
I need to create a pause and play button in shell file to control box.swf.
My box.fla is built in such a way whereby it is moive clip within movie clip within movie clip therefore i cannot use the stop() script to control it.
Please help… i needed a button that stop and play all movie clips.
Thanks 
just name all your movie clip instances…
say this is your swf structure
shell.swf -----(Loads in box.swf into a named movie clip holder_mc)—>holder_mc----->movie_clip_1----->child_movie_clip------>child_of_child
then you can use
//play it
this.holder_mc.movie_clip_1.child_movie_clip.child_of_child.play();
//stop it
this.holder_mc.movie_clip_1.child_movie_clip.child_of_child.stop();
to control the movie clip “child_of_child”.