For 'Fantastic Beasts' series, it's a case of diminishing returns

'Fantastic Beasts: The Secrets of Dumbledore' got off to a less than magical start in its first weekend in U.S. and Canadian theatres. The third installment in the Harry Potter spinoff opened to US$43 million in North America, according to studio estimates Sunday.

It was enough to secure the film the top spot on the box office charts, but it's also a low for the franchise. The first film had a $74.4 million debut in 2016 and the second, "The Crimes of Grindelwald" opened to $62.2 million in 2018. "The Secrets of Dumbledore," which Warner Bros. released in 4,208 locations in North America, also carries a $200 million production price tag.

It's more common than not for sequels and threequels to come in lower than their predecessors, but "Dumbledore" also follows several franchise titles that defied that logic, including "Spider-Man: No Way Home," "Venom 2" and "Sonic the Hedgehog 2."

Critics were largely not on board with "Dumbledore." With a 49 per cent rating on Rotten Tomatoes, most came in on the negative side. AP Film Writer Jake Coyle wrote in his review that "the purpose of these movies has never felt like much beyond keeping the Potter train running" and that this iteration is "a bit of a bore." Audiences, which were 56 per cent female, were a little kinder, giving it four stars on PostTrak and an overall B+ CinemaScore.

The eight Harry Potter films were responsible for over $7.7 billion in box office, while the first two "Fantastic Beasts" films made $1.5 billion total.