The question of whether Jimmy Fallon's career would follow the same post-SNL trajectory as Mike Myers -- or whether it would be Rob Schneider instead -- was answered pretty definitively with Taxi, a comedy whose stupidity meter runs throughout. In it, Fallon plays even more bumbling than your usual bumbling cop -- so much so that he's almost unsalvageable. Not that this really matters, because Queen Latifah's character is savvy enough for the combined intelligence of a dozen bumbling cops. As eager as the screenwriters are to make Fallon a doofus, they're that eager to document Latifah's street smarts and mechanical brilliance, almost as though using this one character to redress two centuries' accumulated negative stereotypes of African-American women. Not only does she have a cab that's tricked out like a James Bond Aston Martin, and can drive it like a NASCAR driver, but she can also fix it and speak several other languages, should that come in handy. And in a fairly transparent act, model Gisele Bundchen is cast as a leggy femme fatale, putting more buns in the seats with her skimpy miniskirts and spiked heels than she could with her acting. As if any more buddy comedy constructs needed flogging, Jennifer Esposito appears as Fallon's supervisor, the hard-nosed lieutenant, who also happens to be his former love interest. Why either Esposito or Latifah would put up with him for five minutes is anybody's guess. From its dead-battery set pieces to its rusted-out plot, Taxi's engine just keeps backfiring, and its exhaust(ed) fumes sure do stink.