This one is definitely funny and a somewhat worthy sequel, but nowhere near the first one. Carrey is excellent as always with these types of roles. But this one was a "more of the same" type movie that isn't as good. Which is actually the best thing they could have done, to be fair, the first one definitely shouldn't have been "fixed". Watch it if you liked the first, which you probably did.
Review of Ace Ventura: When Nature Calls
