The film starts out in complete white and fades into this scene showing the turtes walking around with cities on their backs. the camera zooms in on the middle one as it slowly pans down.
The camera goes into another cloud and fades to white.
Show the boy leaving the turtle to go to another trtle or the main land across a bridge. A bird of prey flies overhead.
I kind of like the turtle idea because turtles kind of represent a home anyway. Plus I think it is better if our hero actually has to remove himself from his original environment as part of his journey. I think it makes him more alone which could add to the unfair life he has been dealt. I think it is better if he has to live with the man and dosent go home to his mom every night.