Chicago Sun-Times by Roger Ebert

Green takes us to that place where we keep feelings that we treasure, but are a little afraid of.

Chicago Reader by Jonathan Rosenbaum

Despite a few narrative confusions, I found it pure magic.

Chicago Tribune by Michael Wilmington

For anyone who likes classic, offbeat American moviemaking, in the rural-thriller genre from "Moonrise" to "Macon County Jail," Undertow is one to check. Seething with violence, bleeding with lyricism, it's a poem from the junk heap, a cry from the swamp.

Washington Post by Stephen Hunter

The movie builds slowly to its grinding climax, and the suspense -- the standard by which a thriller must primarily be judged -- is first-rate.

Miami Herald by René Rodríguez

It's a dreamy Southern gothic, a la "Night of the Hunter," with an emphasis on the dreamy.

ReelViews by James Berardinelli

Although there is violence and danger, this is less about the chase than it is about the relationship between the siblings.

Philadelphia Inquirer by Steven Rea

Undertow has the plain, stark, disturbing quality that marked the original "Cape Fear" and "In Cold Blood."

New York Post by Megan Lehmann

Conforms to many of the tropes of a formula thriller but, aided by an evocative Philip Glass score and Tim Orr's beautifully naturalistic cinematography, it transcends the genre.

Premiere by Glenn Kenny

In equal parts powerful and peculiar, the film is not my favorite of Green’s, but it helps solidify his position as one of the most visionary young directors around.

Christian Science Monitor by David Sterritt

Taking great artistic chances in storytelling and performance style, Green finally fulfills the promise he showed in his fine 2000 drama "George Washington" as a terrific builder of mood, atmosphere, and psychological suspense.