The length of time that copyrighted materials are protected after the creator’s death varies depending on the country or jurisdiction in question. In the United States, copyright protection generally lasts for the life of the author plus an additional 70 years. This means that, for example, if a book is published by an author who dies in 2023, the copyright protection for that book would last until 2093. However, there are some exceptions to this general rule. For example, if a work is created for hire, the copyright protection lasts for 95 years from the date of publication or 120 years from the date of creation, whichever comes first.

In the United Kingdom, copyright protection for literary, dramatic, musical and artistic works generally lasts for 70 years after the death of the author. For films, copyright protection lasts for 70 years after the death of the director, the principal cinematographer, the author of the screenplay, the composer of the music specifically created for the film and the producer.

In Canada, copyright protection for literary, dramatic, musical and artistic works generally lasts for the life of the author plus 50 years. For films, copyright protection lasts for 50 years after the death of the director, the principal cinematographer, the author of the screenplay, the composer of the music specifically created for the film and the producer.

It is important to note that these are just general guidelines and there are many specific exceptions and nuances to the copyright laws of each country. It is always best to consult with an attorney if you have any specific questions about copyright protection.