Judge it on its own merit and it's quite good

Rating: 8/10 (1 December 2007)

Some of the complaints of this film,if I recall correctly,was that it seemed to skimp on the Looney Tunes characters,added characters that weren't of any great likability or memorability and seemed to make Michael Jordan into a sort of caricature/parody of himself. And while I suppose this movie doesn't seem particularly true to either the element of animation or to MJ(though,I'd say,between the two,Jordan comes away as the winner and I'll explain why),this still is a perfectly good piece of entertainment for the whole family.
Aliens come to earth seeming innocuous enough(they measure in inches) but they have a less-than honorable mission:they want to take the Looney Tunes characters back to their planet and make them into something just above slaves for their entertainment. Bugs Buny,infinitely confident,challenges the critters to a game of basketball. They respond by siphoning the talents of five of the top players of the day(PAtrick Ewing,Tyrone "Mugsy"Bogues,Charles BArkley,Shawn Bradley and Larry Johnson. What?! No Scottie Pippen??). To counterbalance this,Bugs and company turn to his old Nike commercial-making days,and the battle is on.
To me,this movie succeeds on it's own merit,and this could be no better demonstrated than by the co-star himself. Jordan plays nobody but himself,and his un-forced sense reaction to the situations actually works well to balance the zaniness around him. An almost un-credited cameo by Bill Murray just about steals the movie. All the familiar characters from the universe of WArner Toons are along for the ride,plus some new ones(a sexy,girl cager rabbit name Lola,as well as the globby aliens,led by a cigar-chomping boss voiced by Danny DeVito)to lend their various talents(Daffy Duck's neuroses are particularly enjoyable)and while this is hardly the best work of animation here(Mel Blanc's invaluable voice is missed,of course),this still works. THe live-action characters seem to be compromised some--THeresa Randle as Michael's wife and Wayne KNight as his harried manager come to mind--but that seems to be a fairly minor crime for a film that aims to be as big,bold,fanciful and childlike as possible. I don't think you need to be a fan of Looney Tunes or necessarily know that much about pro basketball(in fact,it might help!)to enjoy this film,just an ability to appreciate this rarefied blend of familiar animation with commercial savvy.