"Reeves is delightful in a part that surely doesn't echo his own Zen-space-cadet offscreen image by mere coincidence. (Hearing him shrug "I was lost in a cloud of hippie psychobabble" is one of many deadpan highlights here.)" - Variety (Sundance)

"Justin Cobb (Lou Pucci) is seventeen and still sucking his thumb. It's hell on his school and sex life. His guru orthodontist (Keanu Reeves in a hilarious cameo) clouds the issue with "hippie psychobabble." But when Justin is medicated for his attention-deficit disorder, the numbnut becomes a narcissist who leads the debating team to victory. The change shocks his coach (a terrific Vince Vaughn) and his parents (Tilda Swinton and Vincent D'Onofrio), who turn out to be just as screwed up as Justin. Debuting writer-director Mike Mills -- remember the name -- brings heart and sting to Walter Kirn's novel. Pucci is an actor to watch: He rides this spellbinder without softening the truths that plague the thumbsucker in all of us."-Rolling Stone

"In the world of the goofy yet salient, Vince Vaughn, Benjamin Bratt, and especially Keanu Reeves all bring welcome humor and varying shades of strangeness." -FilmThreat.com

"Mike Mills doesn't suck And neither does his new film, Thumbsucker - I was amazed with the time it took to instill its characters with huma nism and compassion and draw great performances out of stars like a hilarious New Age-damaged Keanu Reeves, frumpy mom Tilda Swinton, and newcomer lead Lou Pucci. Dude goes from finger-licking nerdy to meds-enhanced overachiever and back." -SF Bay Guardian

"'Thumbsucker' works, in part due to the strength of Lou Pucci's superb lead performance and, in part, because however derivative the movie may be, none of its predecessors featured Keanu Reeves playing a Zen dentist who possesses the answers to life's Big Questions. That those answers change three or four times during the movie shows that Mills possesses a knowing sense of humor about his subject, and that Reeves continues to fashion a solid career parodying his dudeness." - Los Angeles Daily News

"the weirdly Zen Dr. Perry Lyman" - Netflix

"pitch-perfect deadpan styling" - BoxOffice.com

"Dr. Perry Lyman, tries hypnotherapy, urging Justin to invoke his "power animal" - a deer in the forest, as it turns out - for help in casting out his organic pacifier. As played by Keanu Reeves in a nicely self-parodic turn, pensive stoner Lyman isn't a quack; indeed, if Freud was onto anything in attributing oral fixation, and the catastrophic dentistry that goes with it, to bad parenting, then every orthodontist should cross-train as a shrink."-Village Voice

"But perhaps the biggest revelation is Reeves. So often derided for his laconic personality, and outside of the first Matrix movie, totally wasted by Hollywood, he makes a triumphant return to his indie roots with tongue planted firmly in cheek. Lyman's a great character - over the course of the movie, he goes through nearly as big an evolution as Justin does. Reeves, sending up that laidback persona that made him famous, is simply hilarious."- REEL.com

Also, Moviephone has another clip up where you can see part of Keanu's wonderful performance.