How long does copyright last?
Some sectors of activity have set up organisations to promote and protect the copyrights of their members, and to collect royalties. These are often the best places to begin an enquiry about copyright permissions.
Copyright can be very complicated when it comes to multimedia content.
There can be different copyrights in sound, text, images, video, typographical layouts. If you are re-using multimedia material, make sure you have checked it all out!