Jordan Smith’s review published on Letterboxd:
The Deep Blue Sea is like one of those soggy, overcast winter weekdays where you wake up at the end of the afternoon and lay on the couch all day without turning the lights on. It gets dark in the early evening without your realizing it and then you suddenly feel the need to leave the house, completely unaware of how bitterly frigid it is outside. Terence Davies, like Kelly Reichardt, strikes me as a director I wouldn't ordinarily groove to but he's floored me twice now. Reminds me a little of The Social Network, actually, in its hazy ambers and oaky browns, its sparing close-ups, and that mixture of numbness and on-the-verge-of-tears that's right on the surface. The marital drama bars it from being as devastatingly fragile as The Long Day Closes, though it comes very close. Like a brittle, forgotten journal or photo you'd find in your attic that'll explode into dust if you're not gentle with it.