James G. Robinson and Morgan Creek were quick to capitalize on the enormous success of Ace Venture: Pet Detective and Jim Carrey's newfound worldwide fame, and the result was this uneven but occasionally hilarious sequel. There's not much inventive about the formula, however; the dramaturgy is almost an exact copy of the original, something which suggests either laziness or solely monetary motivations. But after a somewhat strained opening in which a few too many of Ventura's mannerisms and catchphrases from Pet Detective are simply piled on and amplified (for instance "Like a glove" and the preceding action), making the character seem less spontaneous this time around, Jim Carrey eventually gets into the groove and delivers some uproarious physical comedy and fresh ideas. There's a brilliant segment from a dinner party at the consul Cadby's residence in which a snooty fur lover is humiliated, and Ventura is still at his best when mocking upper-class arrogance or lower-class ignorance. When Nature Calls lacks the absurdly inventive twists and turns of the original - instead you'll have to put up with a fair share of mucus and toilet humour - but the reward is of course another rendezvous with perhaps the greatest screen comedian since the days of Chaplin and Keaton.