All the Star Trek films with the original cast in; The African Queen; King Solomon's Mines (the Stewart Grainger one); The Lion in Winter (in fact, anything with Katherine Hepburn in); She Wore a Yellow Ribbon and the Searchers; The Money Pit with Tom Hanks - I cry laughing every time I see it; A Man for All Seasons; Guess Who's Coming to Dinner; gosh, there are so many more I'd be here all night.
Only 50% of middle age adult manage more than 1 brisk 10 min walk a month.
For some reason I've been thinking about a film I saw many years ago with my mother, Kim Novak in Of Human Bondage. Maybe she watched it many times with me on her lap!

....
. I know I took my, then, boyfriend to see it for my nineteenth or twentieth birthday [because I was feeling down at getting so old].