 In the HBO/theatrical version, the title song playing over the end credits,  ends when the picture does and then it fades out. The home video version, the  main title song ends a little bit earlier and once the song ends, you hear  background noise of a forest and another sound effect added in, then it fades  out once the picture does.  Also in the HBO/theatrical version when Amalthea  (the unicorn) finally finds the forest during the end credits, her horn  lights and you can hear the sound effect for it. The Home video version for  some reason omits this sound and you just see the horn light up with no sound  at all.