What movie is it where this spoiled rotten boy does not listen to people and touches cursed gold, becoming a dragon.
It may be Eragon. I have seen the movie you are asking about, but cannot remember the name. This may be it. If you see just below the photo, there is a green link that will let you watch it.http://www.imdb.com/title/tt0449010/
Something similar happened in The Chronicles of Narnia: Voyage of the Dawn Treader. You might try looking up the clip on youtube or something. Hope I helped!