Barefoot in the Park (film) – Wikipedia

Barefoot in the Park is a 1967 American romantic comedy film directed by Gene Saks from a screenplay by Neil Simon, adapted from his 1963 play of the same name, [1] starring Robert Redford and Jane Fonda as a young newlywed couple. Paul, a conservative lawyer, marries the vivacious Corie, but their highly passionate relationship descends into comical discord in a five-flight New York City walk …

https://en.m.wikipedia.org/wiki/Barefoot_in_the_Park_(film)