The Internet Movie Database is available as a collection of flat text files, each of which contains simple relationships between movie entities. For instance, theactresses.txt file contains a list of all actresses within the IMDb and, for each actress, the list of movies (and TV shows, etc) in which that actress has appeared. The data within these text files is a treasure trove of inspiration for graph problems and projects (think:), or might even be used to motivate concepts such as parsing or relational databases.
The Internet Movie Database (IMDb) is a huge collection of movie data [that] ...started as a hobby project by an international group of movie fans.
-- Imdb Website, 2009-10-18