This procedure involves editing your system registry.
Any errors can result in serious bad times for Windows.
Attempt at your own risk!
Choose from any decade in Sandbox mode:
1) From your Desktop, Click 'Start', then 'Run..'
2) Type regedit and click OK
3) Click the names that appear in this order:
Lionhead Studios Ltd
4) Under TheMovies, double-click 'Allow Any Decade'
5) In the Data Value field, change the '0' to '1' (zero to one) and press OK.
6) Close the window, start The Movies, and have fun!
Thanks to Revolution reader RILIUS!