I'm ripping the original soundtrack for the movie "The Five Pennies" -- also available on iTunes, though unlike the aborted "Music Man" the vinyl is of good enough quality to continue (this refers to a previous chapter of soquoted and since I assume all of you are reading along I shan't explain further) -- and it occurs to me that Louis Armstrong is reminding me of someone.
For the Louis Armstrong biopic, I suggest Tracy Morgan
I think he has the dramatic chops for it, just consider the following movies:
What Dat Ninja?
Black Cop/White Cop
Honky Grandma be Trippin'
Samurai I am Awry
Here's the trailer for his Thomas Jefferson movie,