Does anyone know of such a thing? I urgently need a database of all the movies and I want it to be free.
TMDb is committed to free and open access to our APIs for commercial and non-commercial purposes. However, providing the APIs does have real costs for TMDb. For uses of TMDb APIs over a certain rate or for certain types of commercial applications, TMDb reserves the right to charge fees for future use of or access to the TMDb APIs.
The OMDb API is a free web service to obtain movie information, all content and images on the site are contributed and maintained by our users.
I'm not sure about the licensing but it's at least called a "free"base: