O (2001)

"The oddball O is a blunt answer to the conceptual question: When is Shakespeare no longer Shakespeare?"

O Fantasma (2000)

"It extends the writings of Jean Genet and John Rechy, the films of Fassbinder, perhaps even the nocturnal works of Goya."

Ocean's Thirteen (2007)

"Plot pieces barely fit, almost nothing is clearly explained, the gizmos and twists are stupid, the wit witless. This movie smokes a fat cigar of assumption, smug that most viewers will need to feel like insiders."

October Sky (1999)

"A story both grounded and ascendent, a movie that puts your emotions in orbit."

Office Space (1999)

"Brilliant!"

Oldboy (2005)

"Much of it is well made, capably acted and photographed."

The Omen (2006)

"John Moore directed with verve, and glosses nonsense with artful lighting. The audience is lured into not giggling too early or often, though decapitation gets a howl."

On the Line (2001)

"Unless you're 10 and an 'NSYNC fan, you can afford to miss this flick."

Once Upon a Time in Mexico (2003)

"Goes nowhere, furiously."

The One (2001)

"The moviemakers left the story line open for a sequel, but in this case, let's hope once is enough."

One Night at McCool's (2001)

"The script's interlocking stories are dull, and the actors respond with variations on their most predictable themes."

Ong-Bak: The Thai Warrior (2005)

"The opening scene is best, of men combatively climbing a huge tree like crazed monkeys. After that, it's a steady slide down into the sludge pond of global junk cinema."

Open Water (2004)

"Not bad at all (the music is a little trite), but where is the incentive to experience it? Less a horror film than a misery spree."

The Original Kings of Comedy (2000)

"Judging by audience reaction -- out of their seats, in the aisles, standing up, swaying to the music, howling in recognition of material that hit home -- these kings rule."

The Orphanage (2007)

"The truly disturbing element is the heavy reliance on childhood loneliness, fear and sickness."

Osmosis Jones (2001)

"We sense Howard the Duck II struggling to emerge, perhaps holding the flaccid trunk of Murray's elephant bomb Larger Than Life."

The Other Sister (1999)

"This movie offers itself to us like a cow with too many udders."

Our Lady of the Assassins (2001)

"Schroeder has made his best film."

Outside Providence (1999)

"Baldwin is so good he deserves a Farrelly Oscar."

Owning Mahowny (2003)

"More like a case study than a drama."