Like 'Somewhere in Time' with Kennedys
Somewhere in Time is a similar movie in a lot of ways. Like Timequest, it is largely a love story, in many ways. It was made in about 1980, starring Jane Seymour and Christopher Reeve. Jane Seymour plays an actress in the early 20th century named Elise McKenna, or something along those lines. We first meet her character, however, as an elderly woman played by someone else. Her elderly self walks up to Christopher Reeve at the premiere of a play he wrote, and says "Come back to me!" The movie is about their star-crossed, calendar-crossed love.
Anyway, I really enjoyed this movie, and SiT also. I recommend them both.
SPOILERS FOLLOW SPOILERS FOLLOW
****Edit***** you know something, I think this movie is more enjoyable if you don't really approach it as a "what if" about the Kennedys. Instead, try to watch it as a love story first and foremost, at first between the time traveller and his shining vision of Jackie Kennedy, and then later between Jackie Kennedy and the alternate version of a man who, in a universe that he himself prevented from existing, would have invented time travel and gone back to save her husband's life, and dance one doomed dance with her. In that way, perhaps he was sort of a stand-in for the male audience at large, many of of whom have, perhaps, had similar dreams.
This theory would also place this film in context with another somewhat sentimental, yet powerful, Michigan film: Somewhere in Time (1980).
Hey, another movie that had a love doomed, at least for most of the movie, by Time, was Ladyhawke. The man and the woman were both enchanted. She was a hawk when he was human (at nighttime, I believe), and he was a wolf when she was human (in the daytime, I believe).
Back to the main subject: I am definitely not saying that the exciting speculation about what might have been, had JFK not been slain, is extraneous to the story. Rather, that perhaps the allohistorical storyline coexists with what may be, to some, a more powerful story: the doomed love story between Jackie and the time traveller.
You are toast, my toasty friend.