This popped up on a youtube search recently and turns out to be a diamond in the rough. It's an hour long biography on the life of Charles Spurgeon. If you're unfamiliar with this titan of the pulpit I'd encourage you to check it out.
If you are a teenager then I really encourage you to watch the first twenty min. of it. By the time he was 16 Spurgeon was teaching, preaching, and basically leading a revival in his home town. I hope this challenges you to dream big dreams for the kingdom.