There has been a lot of interest in Jobs' life since his death in October last year but Sorkin, who has tackled many difficult book-to-movie transformations in the past, saw "a minefield of disappointment" from Jobs fans, the Hollywood Reporter said.
"It's a little like writing about The Beatles. There are so many people out there that know him and revere him," Sorkin said at the AllThingsD conference.
Sorkin portrayed Mark Zuckerberg as an anti-hero in David Fincher's 'The Social Network' but he plans to treat Jobs as a hero in the new movie.
"He's a complicated guy. Zuckerberg was, as well. But when I'm writing this movie, I can't judge this character. He has to be, for me, a hero."
The scriptwriter said his goal is to produce "a painting, not a photograph" of Jobs and he plans to "identify the point of friction that appeals to me."
Another film, starring Ashton Kutcher as Jobs, is already in the making but Sorkin is not worried about it since "Steve Jobs is a big enough person and led a big enough life to make multiple movies."
He wants a smart actor to portray Jobs in his film.