Small sampling of my favorite "classic" aka pre-1990s movies:

Metropolis (1927), Nosferatu (1922), any Lon Chaney, Sr. or film

Moonlight (1939), My Man Godfrey (1936), The Thin Man (1934), This Gun For Hire (1936)

Arsenic & Old Lace (1944), Coronets & Kind Hearts (1949), The Ghost & Mrs. Muir (1947), Laura (1944), My Favorite Wife (1940)

Oklahoma! (1955), Rear Window (1954), Sabrina (1954), Vertigo (1958)

Night of the Living Dead (1968), Psycho (1960)

Blazing Saddles (1974), Monty Python & The Holy Grail (1975), Murder By Death (1976), The Sentinel (1977), Halloween (1978)

Clue (1985), Haunted Honeymoon (1986), The Fog (1980), The Jewel of the Nile (1985), Labyrinth (1986), Raising Arizona (1987), Romancing the Stone (1984), The Thing (1982), This Is Spinal Tap! (1984), Willow (1988)