Aaron Sorkin, the Oscar-winning screenwriter of Facebook movie The Social Network, has hired Wozniak to help him turn Walter Isaacson's best-selling biography Steve Jobs into a movie for Sony Pictures.
Wozniak, who co-founded Apple in 1976 with Jobs and Ronald Wayne, will act as a technical "tutor" on computers for the film and also offer insight on Jobs, according to Reuters.
Jobs has taken much of the credit for transforming Apple into the biggest technology company in the world, but Wozniak had a pivotal role in the early years.
He and Jobs both put up the initial startup money for the company and it was Wozniak who hand-built the Apple I.
Despite stepping away from the company in 1987 to concentrate on other projects, Wozniak remains an official employee of Apple and there are few people who know Jobs's story so intimately.
Sorkin says he is still undecided on what to include in the screenplay, but he does not want it to be a straightforward telling of the story of Apple and Jobs, who died last October of pancreatic cancer.
"I know so little about what I am going to write," said Sorkin at a Sony Pictures press conference earlier in the week.
"I know what I am not going to write. It can't be a straight ahead biography because it's very difficult to shake the cradle-to-grave structure of a biography."
Sorkin told reporters that he would turn his full attention to the Jobs film in late June, after he has launched The Newsroom, a new HBO TV series set behind the scenes at a television network.
According to reports, Sony paid around $1m to secure Sorkin's service for the screenplay. Other reports have suggested that either George Clooney or Noah Wyle are being lined up to play the man who brought the iPhone, iPod and iPad to the world.
Alongside Sony's movie biopic of Jobs, a competing film is being developed by an independent studio on the Apple visionary's early years, starring Ashton Kutcher.