Once Osbourne decided on the werewolf theme, the decision was made to use the same team for the album cover shoot and the video. While he did not get John Landis (who directed both An American Werewolf and "Thriller"), the team that was put together consisted of horror movie professionals, and the results were quite solid, in my opinion.
The song is also noteworthy in that it was the first collaboration between Ozzy and Jake E. Lee, who replaced Randy Rhodes as Ozzy's guitarist. Rhodes, of course, died in a plane crash in 1982. Lee worked with Ozzy until 1987 and would then go on to form Badlands, who have already appeared on this blog and are one of the rare underrated 1980's hard rock bands, in your author's opinion.
The Bark at the Moon LP would peak at #19 in the U.S and would go on to triple platinum status. "Bark at the Moon" (the single) would not do as well, and did not break the top 100, hitting #109 at its peak. To be fair, few of Ozzy's singles did well. However, Ozzy has remained successful and continues to perform and record to the present day.