Kevin James both produces and co-writes the screenplay for Zookeeper. The film is essentially a variant on the idea we have seen in animated films such as Madagascar (2005) and The Wild (2006) that animals in a zoo have a secret life and can talk among themselves. Here this has been given the Babe (1995) treatment and the animals rendered in live-action via animatronics and CGI. Ultimately though, Zookeeper is a one-gag film based around the idea of the animals stepping in to offer schmuck Kevin James comically wacky romantic advice based on animal mating behaviour.
Zookeeper promptly becomes one of the most excruciating of these live-action talking animals films. It embodies all the worst aspects of these films notable other examples being the Garfield films, Racing Stripes (2005), the Alvin and the Chipmunks films, Underdog (2007), Beverly Hills Chihuahua (2008), G-Force (2009), Yogi Bear (2010), Hop (2011) and Peter Rabbit (2018) namely in that all the animals do when they start talking is to fire off excruciating one-liners, smartass insults and gags that make reference to contemporary pop culture. The lion king (Sylvester Stallone) receives constant jibes and putdowns about his domestic shortcomings from the lion queen (Cher). An elephant tries to hypnotise Kevin James by swinging its trunk You remember nothing. Two bears bicker with one another I was dating a Kodiak model ... Well, she was technically a model, she was on a tobacco can. You know you are in for something bad when the film even has the animals talking with affected ghetto accents.
The one aspect of the talking animals that does come off well is the role of the melancholy gorilla Bernie, voiced to perfection by a characteristically gruff Nick Nolte and brought to life via some fine CGI effects. Nick Noltes voicing is for the large part free of the smartass one-liners that drag down the other performances and is the only one of the animals that emerges as a character. The scenes where Kevin James takes the gorilla out to TGI Fridays are so bizarre as to find their own surreal amusement with the two of them dancing to rap in the van, nonchalantly ordering from the waitress, playing ukulele at the bar, joining a party of secretaries for drinks with Bernie picking all of them up on his shoulders, even slow-dancing with one of them, and the final scene with the two of them lying on the roof of the zoo van relaxing under the stars.
Kevin James has a standard schmuck role one that seems to involve a great deal of physical comedy and him falling over a lot. There are some embarrassingly awful scenes with him acting like a bear, walking with his gut thrust out, paws raised and rubbing up against a tree, or a cycle race through the streets and park with him on a tricycle (the sole reason for such seems to be that the scene looks more ridiculous played out with Kevin James riding a tricycle than a bicycle) that involves Joe Rogan riding alongside while whipping him with a flag. There is a bizarre scene with Kevin James and Rosario Dawson romancing one another while swinging about on curtain sashes in the middle of a wedding party, before James predictably goes flying out of control, knocking over the bride and demolishing the ice sculpture. There are some awful supporting performances, notably from Ken Jeong who seems determined to become the Pauly Shore of the 00s and play the role as obnoxiously as possible, and Joe Rogan who takes the egotistical slimeball role to such an extreme that how you wonder any sane woman could possibly be attracted to him.
The animal mating behaviour scenes have their own stupid amusement but after a couple of scenes of this watching Kevin James act like a bear or pissing to mark his territory the film quickly runs out of ideas about what to do with the premise and falls back on its human romance and comedy scenes. Unfortunately, all of these are written to utterly predictable arcs where one can guess exactly what is going to happen from the outset Kevin James being attracted to the material and status-obsessed Leslie Bibb while failing to see the attraction of the perfect girl under his nose (Rosario Dawson); the romantic rival (Joe Rogan) who is only defined in terms of his obnoxiousness; Kevin James making the choice to sell out for the successful life, before realising that he has abandoned his friends and what he truly cares about doing. It is a film where you feel that you have seen its every move before.