From IMDB's Inception board.
Just some things I've gathered.
1. Levitt looks ridiculously like Ledger. You can't deny it. http://totallylookslike.com/upcoming/?pid=10019 http://images.dailyradar.com/media/uploads/showhype/photos_large/2008/ 08/04/joseph_gordon_levitt__1_.jpg
2. Levitt and Ledger were VERY close friends, almost best friends. This
spawned from their work together in 10 Things I Hate About You. They
remained best pals.
3. Rumor has it that Heath Ledger would've had Levitt's role in
