The film was directed by Ben Stassen and Vincent Kesteloot and written by John R. Smith and Rob Sprackling.

After Rex evades her multiple times, Mitzi chases him into the dining hall where he accidentally bites the president, angering the Queen.

Luring him with the false promise that the Pope is looking for dogs, Charlie disposes of Rex's collar and leads him to a stream with the intention of drowning him.

Charlie, becoming Top Dog, is forced to marry Mitzi and move to America while Rex continues to live at the palace with his new friends.

[4] Clarisse Loughrey of The Independent gave the film 1/5 stars, calling it "deeply unpleasant and in no way suitable for children.

"[5] Mike McCahill of The Guardian gave it 2/5 stars, writing, "Kesteloot and Stassen are too busy scrabbling for content – basically fine, largely indifferent, sometimes misjudged – to fill the gaps between the frenetic set pieces.

"[6] The Canberra Times's Cris Kennedy also gave it 2/5 stars, criticising it as "an appalling exercise in misjudgment" and adding, "The adult concepts are out there in the open: death, nymphomania, gay and transgender shaming, domestic violence.