Closed captioned films have words that can be seen with a closed captioned decoder or with a built-in decoder on newer televisions*.
What is the difference between closed captioning and subtitles? There is a good article in the Examiner.com called Closed Captioning Vs. Subtitles - And what You Should Know about this. The author, Marilyn Sparks, explains that subtitles provide the words that are being spoken, while closed captioning provides much more:
"Films often use sound to convey actions or events that happen off camera, such as screaming, crashes, telephones ringing, knocks on doors, music playing etc. These descriptive captions explain what the actors are reacting to and are important inclusions that might otherwise be lost to those who have trouble hearing".
The latest closed captioned movies and videos at the library include drama, history, biography, juvenile films, and much more. You can sort by those categories, as well as by date, owning library, and language.
You can also look up closed captioned materials in the catalogue by using the subject heading Video Recordings for the Hearing Impaired.
Check them out!
*See the comment from Joe Clark, below. As he points out, closed captioning has been built into TVs for almost twenty years now, so it's not just "newer" TVs that have this technology!