12 Angry Men, Amadeus, Gladiator, Jurassic Park, The Shining, to name a few. Practical effects always hold up better especially against early CGI.

There is a wealth of good movies out there if you're willing to dig a little. Sometimes you have to get out of your comfort zone or contextualize a film as being a product of its time. But there are great films in every decade back to the late 1920s. I mean, Wings is almost 100 years old but you can still watch it and see how it influenced films that came after.