This kind of zany stuff is Carrey's forte, and so it is for Leoni, too. They make a grand pair, and their willingness to look stupid -- not to mention risking injury with various leaps and pratfalls -- gives the movie humour and energy.
The desperation isn't made real, and yet their robberies are all too real. It's in this weird zone, not weird enough for drama, not wild enough for comedy, and only Carrey's moment-by-moment zaniness squeaks out any laughs at all.
Here is a revised primer: See Jim Carrey ham it up. See Téa Leoni have appealing fun with scant material. See studio execs digging into their vault for old material. See ... oh, why not just wait for the DVD.
The rare Hollywood remake that, by daring to reinterpret its source material within a fresh political context, actually has a reason to exist; the results, if not exactly subtle, are still fun enough to fend off any charges of titular false advertising.
The film's overall frantic tone can't disguise the fact that the picture offers little delivery for all its buildup. Everyone involved with this production must have known there was a good movie somewhere, but no one's been quite able to find it.