Endless Night is one of those movies that is hugely flawed, and yet it sticks in the mind unlike many more polished movies. Extremely slow paced for much of it's length and with several sequences that feel almost unnecessary, and even a few which just seem wierd, the film than delivers a true knock out of a twist which makes one realise how well the story has been constructed. For this reason, in some respect it's more satisfying to watch the second time even if one is no longer surprised, because one can notice all the little clues that have been put in ,and many of the previously mentioned unnecessary or wierd bits seem more essential. There is, though, one huge red herring that seems rather pointless.
This was the last of the Hywell Bennett/Hayley Mills collaborations for the Boulting Brothers and it is possibly their most interesting. Cast are all excellent ,including George Sanders in one of his final roles, and this is just as well since the film is indeed extremely talky. The alternately eerie and romantic Bernard Herrmann score is very memorable, although they could have made sure Mills' singing voice [obviously dubbed] sounded like her normal voice.
Many will be unsatisfied with this film ,but try it if you fancy a somewhat different kind of thriller, even it's only really a thriller in the final half hour!