The Harry Potter franchise as the best film adaptations? Please. The films were overall a triumph and earned a lot of money, but overall as films were average. 1 and 2 were hyper attention-to-detail kid's movies, 3 was absolutely fantastic, 4 was a piece of garbage, then 5-8 were good film that took a lot of creative license on source material.
Jurassic Park is probably tops on my personal list. The movie still holds up 20+ years later, and was one of the most revolutionary films ever made as far as pushing the envelope of what is possible, and Crichton is one of my all-time favorite authors with that book being one of my favorites.
A huge one I see missing is Fight Club. In fact, most of Fincher's best work should be on this list imo, but definitely Fight Club, Social Network and Girl With the Dragon Tattoo.
The Silence of the Lambs, No Country For Old Men, Requiem For A Dream, Stand By Me... - a lot of really high-quality literature/filmmaking that isn't making the list because they aren't necessarily blockbusters.