The Vitaphone soundtrack with the original music and sound effects are no longer lost. Interestingly, one of the music pieces used is what we all know as the "Alfred Hitchcock theme"!
The $500 offered by Professor Padilla to Stan and Ollie in 1928 had a purchasing power of $6,570 in 2012.
As he did in several of the silents, Laurel calls out to Babe during the film. This was of course, Hardy's off screen nickname, but as a silent, no one cared and left it in.
If you're good at lip-reading, you'll notice at various times Stan can been seen addressing Ollie as "Babe," Hardy's nickname to his friends.
Hal Roach Studios production number S-14, changed to L-14.