This is from IMDB bio of Curly-
"Contrary to popular legend, the actor made a second cameo appearance as the face of an attacking bat in "Spooks!", a Three Stooges short from 1953. Unlike his silent appearance as a train passenger in his only other cameo- here, he offers his trademark, "Woowoowoowoowoo...", but his face looks starkly different than the one to which we'd all become accustomed. It was released posthumously (Curly died in 1952), and is the only film by the Stooges, which is in 3D."
The Youtube post of Spooks is a bit fuzzy, so can anyone confirm or deny?
(I know Pardon My Backfire was also in 3D, so that part is wrong, anyways)