- Acting for Two: Jensen Ackles plays both Dean and Evil!Dean.
- What Might Have Been:
- Jason Voorhees was supposed to appear in this episode as an Unexpected Character, but the rights could not be obtained.
- Originally, Dean was supposed to confront a vision of John Winchester, but Jeffery Dean Morgan was unavailable so Dean confronts his doppelganger instead.
http://tvtropes.org/pmwiki/pmwiki.php/Trivia/SupernaturalS03E10DreamALittleDreamOfMe
FollowingTrivia / Supernatural S 03 E 10 Dream A Little Dream Of Me
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