Movie follows one restless boy. At the beginning of movie he writes his name on the wall of house with color spray and his father was really mad because of that. After that kid disappears and nobody knows anything about him. After dozen years he's coming back to his home but he doesn't discover his family who is he. He start to hang out with his brothers and sisters like someone else. He sleep in some tent in the woods.

Can you help me with movie name I watched it long time ago. Thanks in advance.

I Know My First Name Is Steven