Great question — answering as the UphillTech team:
This sounds like Diane Keaton's film Unstrung Heroes from 1995 with Andie MacDowell, John Turturro and Michael Richards, but the kid's not exactly an orphan. Steven Lidz, unhappy with his home life since his mother got sick, goes and lives with his two crazy uncles. There he changes and gets closer to his uncles, but his parents want him home even though he is finally happy and popular. One of the crazy uncles is a hoarder and stacks huge piles of newspapers there. Here's the trailer:
Full answer by Walt: https://movies.stackexchange.com/a/38738 (CC BY-SA 3.0).
Need it done for your business? UphillTech.