You can ask Samuel French for permission to add the songs from the movie to your production. There might be a fee involved, but there's a pretty good chance they'll say yes, as I know a lot of non-professional productions have (legally) used those songs.
The Australia thing on the other hand, I agree is probably being done illegally. Use this opportunity to show your students what intellectual property is, and how to go through the right channels to get what you want (i.e. the songs from the movie). Good luck!
Updated On: 11/21/16 at 07:00 PM