I remember this film when it came out. At that point Rand's philosophy had not become the backbone of conservatism that it is and I found it harder to understand how anyone could take Rand or her philosophy seriously. Helen Mirren, who at that time was far better known to American audiences for her work in television (Prime Suspect had already won her two Emmys) once again demonstrated the bravery she has always had, this time in playing a woman who we felt sympathy for even as she increasingly engaged in foolish behavior.
Mirren well into her sixties was one of the most fearless actresses when it came to her sexuality. I remember in the early 2000s she did another movie called the The Roman Spring of Mrs. Stone (I believe its an adaptation of a Tennessee Williams play). Mirren was well known for sexuality and appeared topless in the film but in this case it was done more to show how her character was far more frail than she wanted to admit in public.
Fonda and Stoltz were always two of the more undervalued actors of our time (Stoltz has spent much of the last fifteen years working as a director) but at their peaks they were among the greatest actors I'd ever seen. It will be harder to find these kinds of films (cable movies of the 1990s have rarely gone to streaming) but like so much the work of Showtime and HBO, it would be worth finding them.