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Actors Ryan O'Neal, left, and Ali MacGraw walk on the campus of Harvard University in Cambridge, Mass., Monday Feb. 1, 2016, more than 45 years after the release of their 1970 classic "Love Story." The duo, now in their 70s, currently are co-starring in a national tour of "Love Letters," which is about a man and a woman who maintain contact over 50 years through notes, cards and letters. (AP Photo/Elise Amendola) Image Credit: AP

Actors Ali MacGraw and Ryan O’Neal have come to the Harvard University campus to reminisce about their 1970 classic film Love Story as they prepare for a Boston stop on the national tour of the play Love Letters.

Both actors said in a discussion on Monday the movie has special meaning to them considering where life has taken them since it made them household names.

The 74-year-old O’Neal noted cancer, like in the movie, has played a big part in his real life, including his battle with leukaemia.

Seventy-six-year-old MacGraw said being on campus brought back wonderful memories that few of her subsequent experiences in film ever captured.

Both admitted they had a crush on each other during filming on Harvard’s campus and had not seen the movie in many years.