The Robert Zemeckis-directed film, which is being released in India by Sony Pictures on October 9, recreates Petit's unauthorised high wire walk between the Twin Towers of New York in 1974.
Considered a coup of sorts at that time, the 45-minute walk brought a lot of publicity to Petit and the newly constructed towers.
Kingsley, 71, says he has been blessed to have worked with "great mentors" right from his theatre days.
"There's a seriousness about his approach to teaching and that I also got from the people, the men and women that I've worked with as directors.
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"So, he is an amalgam of the people I've been fortunate to be shaped by and then I narrowed it down to about five directors, and modelled him on one director, whom I shall not mention. But whom I love," he told reporters at a media event in Cancun, Mexico, while promoting the movie.
"Bob is very courageous for a contemporary director, unafraid of tragedy. He's unafraid of the dark shadow... There is an element of restraint in his work."
The film is also a love letter to the Twin Towers which were destroyed in the 9/11 terror attacks.
"Also when I cautiously mentioned the word tragedy what I mean is that one of our co-stars in this film are those beautiful Twin Towers. And the way he filmed dear Joseph saying his last words in the film, there is a hint of terrible loss.