Austin Chronicle by Jenny Nulf

Undine’s hauntingly aching romance is enchanting, as thick as the feeling of inhaling water into your lungs. There’s a drowning sensation to Petzold’s myth-building in Undine that’s totally engrossing, once again proving he is one of the world’s most exquisite love story composers.

The Globe and Mail (Toronto) by Anna Swanson

Regardless of whether Undine is working at a level of allegory or actual fantasy, it is an expansively rich film.

Los Angeles Times by Justin Chang

Undine is a poker-faced fairy tale, a fantasy wrought by a committed cinematic realist. It’s an example of how a filmmaker can take an outlandish central idea and play it beautifully straight.

The New York Times by Glenn Kenny

Undine is ultimately more enigmatic than most of Petzold’s work. It is also, like its title character, eerily beautiful. While it could well serve as a high-end date movie, it’s also something more.

Paste Magazine by Dom Sinacola

As in all of Petzold’s films, Undine builds a world of liminal spaces—of lives in transition, always moving—of his characters shifting between realities, never quite sure where one ends and another begins.

TheWrap by Dave White

Undine allows for the magical while keeping its eyes firmly on the painfully real, making a valiant, full-hearted attempt to break the bonds of history.

The Playlist by Jack King

Petzold’s unsettling film is awash with wonderful ambiguities and strives to challenge both its audience and filmmaking conventions. They’re incomparable and largely succeed through their independent nuances.

Original-Cin by Liam Lacey

One can see clear linkages between Undine to the nightmare weirdness of Alfred Hitchcock’s Vertigo, though it’s as if this similar story were drained of its passionate momentum and rendered abstract.

Slashfilm by Hoai-Tran Bui

Its disquieting moments of magical realism paired with the all-consuming romance shared between Undine and Christoph — which feels as grand and tragic as the best cinematic love stories — add some warmth to Undine‘s chilly, cosmic exterior.

Screen Daily by Lee Marshall

Petzold’s lean, crisply-shot tale is a deft shape-changer, switching mood and register, interlacing romance with suspense and sudden jabs of humour.

The Hollywood Reporter by Boyd van Hoeij

Beer and Rogowski are so good, and have such amazing chemistry, that it’s hard to look away or not root for them to be together.

The A.V. Club by A.A. Dowd

For all the minor creepiness Undine pulls from its inspiration (including some striking underwater shots), it also inherits a certain simplicity of plotting and one-note characterization. Yet I still wouldn’t hesitate for a second to recommend the film, because it’s been made with the superb economy of pacing, shot selection, and editing that’s become a Petzold specialty, nay a trademark.

Slant Magazine by Christopher Gray

The film questions the fixed nature of human behavior in a world whose borders are constantly shifting.

The Film Stage by Rory O'Connor

In taking a centuries-old piece of mythology as its source material, Undine ultimately forgoes the inventiveness and sensuality of its first half by slipping into relatively bland predictability. And for a filmmaker who thrives on disregarding narrative conventions, it feels a fatal error. “Relatively” is the key here. This is still Petzold after all, if not peak Petzold.

IndieWire by Eric Kohn

Petzold remains a master of capturing frantic characters doomed by dark obsessions, and while Undine is certainly a minor work, it still shows evidence of a master’s hand.

Variety by Peter Debruge

There’s a stylistic and narrative elegance to Petzold’s approach, with its clean lensing and repeated use of a single piece of music (the rolling piano Adagio from Bach’s Concerto in D Minor, BWV 974), that suggests restraint, where a queer filmmaker might have propelled things into camp territory. In a way, it’s a shame that Undine stops short, since the material feels thin, and the statement as murky as the lake to which the camera ultimately returns.

The Guardian by Peter Bradshaw

It is possible to come away from the film less than convinced, but very impressed by the sheer force of Petzold’s film-making talent (recently so stunning in his drama Transit) but which has been here deployed for something which is a bit flimsy and silly.