Language reference works, including print ones, can be identified via OneSearch. The following are a some subject searches for locating this type of material:
Or to browse all the possibilities, just search "german language."
Try Mango, the Libraries' online resource for English speakers to learn foreign languages—including German—and foreign language speakers to learn English. Mango also offers a small collection of full-length feature films, a couple of which are in German; to find these, choose "German" as your language, and then click on "Explore". "Mango Movies" will display the available titles.
Apps are available for iPhone / iPad and Android; for more information, see the Mango mobile apps page. Or dive in with the link below.