Reviews

They live next to a lake (Every guy who ever watched the movie remembers Gina in her bikini). It's a sailboat. You can see it turning around. Given the production value, it was probably someone who lived near the location, and they made no attempt to dissuade them, because it would look more natural.

I agree with the assessment that notes if they didn't leave it open ended, you wouldn't remember it.

Given our culture's obsession with gaining answers, and that the actors are both still alive, I'm sure someone has pitched a sequel to John and Glynnis about reprising their roles, with them deeply involved in their immunodeficiency research foundation. Or, if you prefer ironic plot twists, he's fine, and she now has HIV from a transfusion...