Gregory Peck, at 54 years old, the man, the actor, not the character, falls head over heels in love with Tuesday Weld, who is 27 years old, she, the actress, not the character. So, the difference is 27 years, which is also seen in the film, the age of the characters, he can very well be her father. I, for one, I know the feeling perfectly, I experienced it personally, even with a bigger age difference. In the end, everything ends badly, it can't last. The story is very simple in the film, the actors all play well, Estelle Parsons, Charles Durning, Ralph Meeker, and the beautiful music of Johnny Cash enriches the image. It's not John Frankenheimer's best film, but it's absolutely worth seeing.
Review of I Walk the Line
