Here is a very touching video that includes Cohen reciting the stanza sung in the movie during his acceptance speech when he was inducted into the Songwriters' Hall of Fame. Here are the lyrics to that stanza which is missing from most performances of the song:
I did my best, it wasn't muchFollowing the Cohen video is a video of K.D. Lang's version which also does not include that stanza.
I couldn't feel, so I tried to touch
I've told the truth, I didn't come to fool you
And even though
It all went wrong
I'll stand before the Lord of Song
With nothing on my tongue but Hallelujah