While researching a topic, a student has taken the following notes:
- Silent films can be valuable historical documents of their time.
- Ninety percent of silent films made before 1930 are now lost.
- A film is considered lost when no remaining copies are known to exist.
- Director Oscar Micheaux’s 1927 silent film The House Behind the Cedars is lost.
- Director Henry MacRae’s 1925 silent film Ace of Spades is also lost.
- Archives such as the UCLA Film and Television Archive in Los Angeles, California, help preserve some of the remaining films from the 1920s.