My company developed a product for casting industry. It's kind of self-help application in which users can upload and share their work and directly connect with right people/opportunities without middleman. I need clarity in terms of what documents I need to have once a customer is interested in such a product and is knocking the door.
Map the industry down to individual level. Talk. Verify your idea. Have a good pitch ready.
1. webpage with clear UVP and CTA
2. one liner for the "aha" moment
3. one pager pitch - number focussed.
4. three pager pitch - if the one pager was interesting.
5. blog posts, long content for people to dive in.
I wish you would have stated in your question what your monetization strategy is.
The answer will vary depending on whether you are selling to the talent, the hiring entity, or others (Maybe the talent schools? Casting agencies? Advertising agencies?).
The framework to answer each of these will be quite similar: Create a point of connection, outline the problem for that particular segment of the audience, present how your solution helps them, and then direct them toward the first Entry Point to your service.
In some instances, it will be advisable to include points to raise your credibility, such as testimonials, certifications, awards, etc.
More than glad to offer more specific help if you need it.