I can't answer this for sure, but winches other than capstan winches were
rare on Landrovers until at least the eighties, and the ones fitted before
this were invariably direct mechanical or hydraulic. Either of these could
well have had enough power to do what you are asking, but as they rely on
engine power, the engine would have stopped before it became vertical due
to either fuel starvation or lubrication failure.

The winch in the film was clearly electric. These were either non-existent
or very uncommon until the eighties (the availability of these with their
relatively low cost and easy installation meant they then became much more
common). Some (but not all) electric winches have enough power to haul an
88 or 90 vertical, and running from the battery are not dependent on the
engine keeping going. Although they obviously would do better with a sealed
or at least semi-sealed battery.
JD

It was an electric winch, so as long as The Anti-Christ was fitted with a
sealed battery to stop the acid running out, it's entirely feasible. Having
owned a Series 1 of that ilk I remember the film fondly as it brought back
memories of a good piece of Meccano-like kit I used to own before I came out
to Oz many years ago.

Karen