Free time helps. But also, finding other people in the hobby/trade to work with helps. Being in a book club is nice, because talking about the book you read can be as much fun as reading the book. Same with art.

I feel like watching new movies is a no-brainer, though. I might suggest pulling from the Criterion Collection on random, maybe by genre. But it's often fun to watch this stuff with other people.

Got my wife into old movies for a minute. "Bringing up Baby" and "One Two Three" managed to hold up after over 60 years. Give those two a shot.