No the changes didn´t work.
Thanks anyway,here the called function

var movie_handle;

function level_A()
{ proc_kill(3);
player.passable = on;
wait(1);
movie_handle = media_play("pegasustravel11.mpg",null,100);
while (media_playing (movie_handle) == 0) {wait (1);}
while (media_playing (movie_handle) != 0) {wait (1);}
wait(1);
level_load ("P3X-771.wmb");
wait(1);
}