The Dreamer singer's widow, Sharon Osbourne, is said to have delayed the release of the film, which originally planned for release earlier this year, as she was in the depths of grief.
However, she is now said to be aiming to have it out in time for the festive season as a gift to fans of the rock and metal icon.
A source told The Sun newspaper's Bizarre column: “It’s going to be a great Christmas gift for fans of Ozzy and Black Sabbath.
“The film is looking really good and features so many moving moments of Ozzy interacting with his friends and performers.
“It moves around from footage of the gig to artists backstage. It is very powerful because it captures Ozzy’s final moments in the limelight.”
Ozzy's legendary festival, OzzFest, is also set to return to Villa Park next year.
Sharon recently confirmed discussions with potential performers were underway but kept the details locked down.
She told Metal Hammer: “Of course we’re speaking to people.
“I can’t let that out yet, but it’ll be soon.”
Sharon previously hinted at future bookings, saying she wants to “see Rob Halford there,” suggesting Judas Priest could be on the wishlist.
She held early talks with Live Nation about the festival’s full-scale revival and said a modern Ozzfest would embrace a broader, more eclectic lineup to reflect how fans consume music today.
