Bladeunner. Philadelphia. Green Mile. Any Clint Eastwood western. The Godfather.Lawrence of Arabia. Bridge on the river Kwai. 2001 a space odyssey. High noon. All quiet on the western front. Great expectations.
Much prefer the original BladeRunner with the voice over, to the directors cut version.
If you want to pick favourites you really need to categorise the films i.e. Comedy - The Burbs - Blazing Saddles - Any Ealing comedy Thriller - Horror - Hammer films SciFi - Star Wars Cartoon - Snow White Musical -
Although of course some films contain a mixture Alien - SciFi / horror / Thriller