Tenacious D in The Pick of Destiny (partially found original ending of comedy film; 2006)
The very short snippet of the deleted scene from the main trailer.
Status: Partially found
Tenacious D in The Pick of Destiny is a 2006 New Line Cinema film, directed by Liam Lynch.
Jack Black, protagonist and writer of The Pick of Destiny, spoke to Entertainment Weekly in November 2005 and stated ”It tested really well except for the ending, which was a little turdy, we have to go back and make it more kick-ass."[1] The film would finally release in November 2006.[2]
In February 2007, the film would be released to DVD, though despite two menus of deleted and alternate endings, the original ending does not appear on the disc.[3] In the main trailer for the movie, a scene of Black and Kyle Gass (the other protagonist) appear about to perform a song as Tenacious D on stage. Notably, they are wearing the costumes they wore towards the end of the movie, meaning this is very likely to be the cut ending.
Therefore, it seems possible that the original plot of the movie was that Black and Gass would play a song on the stage to end the movie.