Aliens (1986)

A recent unexpected TV viewing left me wondering if this is the
Citizen Kane of Science Fiction Horror movies. Near perfect film
making on every level from James Cameron, on a roll that would
include Terminators 1&2 and the most perfect film of the lot.
Even the sound effects or the machine guns are sublime. Full
marks for production design, screenplay, effects that haven't
dated, developed side characters that pack a memorable punch,
unbearable building tension, iconic lines and an almost unheard
of lead acting Oscar nomination for it's equally unusual female
action lead, Sigourney Weaver as Ripley. Hugely influential from
video games to any film where a state of the art military force
is hopelessly out of its depth and packed with fascinating
subtext like having warring mothers as both antagonist and
protagonist. A perfect 10/10.