Doing some google research:
In the United States "The term of copyright protection for works published prior to 1978 is 95 years from the date of publication. For works published after 1977 the term is equal to the length of the life of the author/creator plus 70 years. By law, the copyright owner is the only one who has the right to reproduce their work. If any other party wants to reproduce the material in any manner, permission must be obtained from the copyright owner."
The info comes from here:
http://mpa.org/copyright_resource_center/church_musicianIn the UK "copyright generally lasts for a period of 70 years from the end of the calendar year in which the author dies"
The info comes from here:
http://www.mcps-prs-alliance.co.uk/about_us/aboutcopyright/Pages/aboutmusiccopyright.aspxRichard Strauss died in 1949 so in the UK we can see the film with music in 2019. In the US early Strauss works date from 1879 so are in public domain, later ones from 1948 are copyright to 2043. Does this seem correct? Is there a country with poor copyright laws so we can all go to see the film. Or do we book 2019 for a Ken party?
Ken did a film "a British Picture" where he shows lots of his old films. His piece from Dance included music by Strauss, but Johan Strauss not Richard Strauss- a neat way of getting round the problem.
Iain