This article is from the The Osbourne FAQ, by Mike L. with numerous contributions by others.
"The f***ing Monkeyz?"
...Ozzy in Jerky Boys movie
"These evil people have just got to be stopped"
...Ozzy in Trick or Treat
Like some musicians, Ozzy has been in a few movies and in keeping with
Oz-tradition they are humorous roles. In the 1986 horror movie "Trick or
Treat", Ozzy plays Reverend Aaron Gilstrom, a priest who wants the evil
being spread through music stopped :) The movie starred Marc Price who
played Skippy in the Family Ties television show. Also stars Gene Simmons
as a DJ. [Note: Watch the movie all the way to the end, past the credits
and you'll see Ozzy once again]
There is also mention of Ozzy being in the movie 'Riders of the Storm' as
an "urban animal". The movie starred Dennis Hopper.
Though not a movie, Ozzy appeared in The Decline of Western Civilization -
Part 2 which was a documentary about heavy metal directed by Penelope
Spheeris, a well known producer.
In the 1994 Jerky Boys movie, Ozzy played a band manager who runs into the
Jerky Boys in a bar. The band he manages plays 'Symptom of the Universe'.
Ozzy plays a short part in Howard Stern's "Private Parts" movie, released
Director Penelope Spheeris, producer of Decline of Western Civilization
Parts 1, 2, and 3, and Wayne's World) took out a full crew on last year's
tour to capture the Ozzfest. The people, the music, the excitement, the
chaos. The feature length documentary is enhanced by the use of
cutting-edge High Definition technology and a full Dolby Digital Surround
Sound audio treatment. A special film tour is being planned for this year
to take the film across the country, and, in addition to the feature
Ozzy appeared in Adam Sandler's "Little Nicky".
Ozzy appeared in "Adam Sandler Goes to Hell" and on the
"Moulin Rouge" soundtrack.
Ozzy makes an appearance in "Austin Powers - Goldmember".