there was plenty of great movies in the 80s (as in any decade)
and some of them remain great movies today after may views.
by year:
1980: raging bull, blues brothers, empire strikes back, the shining
1981: raiders of the lost ark, escape from new york, we children from the banhof zoo
1982: Blade Runner, The Draughtsman's Contract, a midsummer nights sex comedy
1983: the meaning of life, return of the jedi, the big chill, trading places
1984: once upon the time in america, ghostbusters, top secret!,
1985 back to the future, brazil, purple rose of cairo, fandango
1986 blue velvet, the name of the rose, highlander,
1987 the untouchables, wings of desire, baghdad café
1988 cinema paradiso, rain man, women on the verge of a nervous breakdown
1989 sex lies and videotape, when harry met sally, dead poets society