I've had the sound file for this, but I have never seen the video until now.
Excerpted from BREAKDOWNS OF 1939, the annual 1935 - 1944 Warner Bros. blooper reel, produced for screening at the studio's Christmas party. The reels were produced/edited by
Termite Terrace (aka the Looney Tunes and Merrie Melodies directors), featuring outtakes of WB stars like Pat O'Brien, Bette Davis, Humphrey Bogart, James Cagney, Olivia DeHavilland, Ronald Reagan, etc. Many bloopers were actually staged, but the majority were legitimate.
BREAKDOWNS OF 1939 is the only one to feature Looney Tunes animation, although the Looney Tunes theme music was used on each. Frank Tashlin wrote & animated that particular Porky Pig segment.
All the surviving BREAKDOWN reels are on DVD as bonus features; 1943 is reportedly missing from the WB vaults...
1935 - G-MEN *
1936 - BULLETS OR BALLOTS *
1937 - SAN QUENTIN *
1938 - THE ADVENTURES OF ROBIN HOOD **
1939 - EACH DAWN I DIE *
1940 - CITY FOR CONQUEST *
1941 - THE MALTESE FALCON (3-disc SE) ***
1942 - ACROSS THE PACIFIC ***
1944 - PASSAGE TO MARSEILLE ***
DVDs also available in box sets...
* "Warner Tough Guys Collection"
** "Warner Legends Collection"
*** "Humphrey Bogart Signature Collection Vol. 2"