TV. The best value are Fonda and Redford, and the way it's still possible to find a fiction for them as a couple's possibility, many years after Neil Simon's "Barefoot in the Park", a script from 1967. She's still vivacious and he's apprehensive and the look of the movie is to look at them and nothing else. Retrospectively the spectator goes back to Central Park and to the extreme animal beauty that was theirs.
This is an extremely "low-energy" love story & the age of the protagonists has nothing to do with it. The movie refuses to produce any fun. Instead it's always serious, heavy; never wry or naughty (except the coffee shop scenes). It got all ingredients of playfulness, amusement, sexyness & moments with twinkles in the eyes. But,"par tout", it won't show-up. Anyways, Redford & Fonda still have the romantic magic!