A self-serious eco-thriller assembled with a competent but heavy hand, A Dark Truth decries corporate corruption and Third World oppression in an all-too-obvious manner.
—Justin Chang Variety
Interweaving clumsily staged action sequences with endless pontificating about evil mega-corporations privatizing public resources, the mediocre environmental-themed thriller A Dark Truth wears its good intentions on its sleeve.
—Frank Scheck Hollywood Reporter
A lightweight flick about a heavy-duty subject, A Dark Truth plays like a TV movie back in the days when TV wasn't worth watching.
—Rick Groen The Globe & Mail (Toronto)
For all the attempted intrigue and mayhem, the film is dullsville, mired by a poky script, unremarkable action and, the hard-working Garcia aside, uninspired performances.
—Gary Goldstein Los Angeles Times
The film's heart is in exactly the right place, but there's not a brain in its pretty little head.
—Chris Packham Village Voice
A Dark Truth is one of those unfortunate projects whose component parts are immediately at odds with one another.
—Michael Nordine Slant Magazine