Reviews provided by RottenTomatoes
Where there's dumb and dumber, there's invariably dumbest, a case in point being Big Fat Liar.
Detroit Free Press:
I'd be the one lying if I said that Muniz and his inspired payback aren't sometimes funny.
The result is so tame that even slightly wised-up kids would quickly change the channel.
Ebert & Roeper:
[A]n utterly charming and hilarious film that reminded me of the best of the Disney comedies from the 60s.
In gleefully, thumpingly hyperbolic terms, it covers just about every cliche in the compendium about crass, jaded movie types and the phony baloney movie biz.
Dallas Morning News:
It's hard to think of two young actors who could pump as much life into a movie as Frankie Muniz and Amanda Bynes do in Big Fat Liar.
New York Times:
It's no surprise, alas, that Mr. Muniz and Ms. Bynes seem considerably smarter than the frantic knockabout comedy in which they find themselves trapped.
Unless you're part of the Nickelodeon Nation, the cold, hard truth is you're better off dropping your 'tween at the multiplex and spending that hour and a half doing something more worthwhile.
The overall effect is less like a children's movie than a recruitment film for future Hollywood sellouts.
Globe and Mail:
Becomes a progression of increasingly elaborate slapstick stunts, in the brutal, noisy Home Alone vein, in which the complexity of the pranks rarely yields a commensurate comic reward.
Robert K. Elder,
Plays so flat, so to close its 'movie message' formula, that it seems as if we've seen this movie before.
A lame collection of dumber-than-dumb gags, the quality of Big Fat Liar is on par with that of the worst television sit-com gorged to four times its normal size.
The movie's charm is that it has confidence in this goofy story and doesn't push it too hard.
Never pushes its pranks far enough to reach laugh-out-loud success and never gives its actors enough comedic support.
Feels at times like a giant commercial for Universal Studios, where much of the action takes place.