Hi Daniel,

There's a few reasons for this, historically it's been primarily because of people who abuse our service. However, as TMDb has grown up the reality is that the service we provide for free is worth thousands of dollars a month from our competitors so we feel it's a small price to pay for admission.

Additionally "state" is not relevant in most parts of the world

State or province is fine.

Is it your policy, that if you are not willing to disclose your telephone number and address, you can't have an API key?

Yes, that is our policy.