75

Rolling Stone

By Peter Travers
21 drags itself to a climax that puts credulity in splints. So what? In a multiplex of dumb-luck hits, it's a kick to watch Spacey and a gifted young cast use smarts to deal audiences a winning hand.
Full Review
75

Philadelphia Inquirer

By Steven Rea
21 makes for some slick escapist fantasy. Even if, and because, the fantasy has its roots in something real.
Full Review
75

Entertainment Weekly

By Owen Gleiberman
The fun of 21 is the way that this sharp, hyperaware star in the making, his face as readable as a mood ring, pours us into an adrenalized cocktail of fear, desire, and mental buzz.
Full Review
70

The Hollywood Reporter

Escapist moviegoers happy to live out a flashy fantasy get a brief comeuppance and still walk away from the table with a little something in their pockets.
Full Review
63

TV Guide

By Maitland McDonagh
A predictable moral tale enacted by blandly pretty young things who bear little resemblance to the average brainiac.
Full Review
50

San Francisco Chronicle

By Mick LaSalle
A movie with an irresistible premise that ultimately collapses around the whole issue of motivation. Until it does, this is a thoroughly entertaining picture.
Full Review
50

Wall Street Journal

Very little adds up in 21.
Full Review
50

USA Today

By Claudia Puig
While not exactly a zero, 21 lags and fails to measure up dramatically.
Full Review
50

New York Daily News

By Elizabeth Weitzman
The early scenes are flashy fun, and Sturgess (handsome Jude in "Across the Universe") makes a convincing math geek. But the requisite romance and Hollywood-style ending feel as fake as the air allegedly pumped into casinos to revive flagging players
Full Review
38

Boston Globe

By Ty Burr
The movie's chief audience, consequently, will probably be gullible and young, responding to the cliches only because they haven't seen them before. They have a word in Vegas for these people: Suckers.
Full Review
48 out of 100
Mixed or average reviews
Metascore® based on all critic reviews. Scores range from 0 to 100, with higher scores indicating more favorable reviews.