Most people have comfort foods, and maybe even comfort books, why not comfort movies? I have a few (that I own, I am sure there are others that I would watch if I had them)
These are the movies I can watch, if I feel like watching rather than reading, even though I've already seen them multiple times (in no special order).
True Grit
When Harry met Sally
Sound of Music
Forest Gump
Holiday
Philadelphia Story
And probably my most absolute favorite: BIG MIRACLE