Powered by strong reviews and a mania for all things Marvel, “Thor: Ragnarok” is off to a thunderous start at the international box office. The superhero film picked up $12.8 million from roughly a half dozen markets on Tuesday and Wednesday, including the United Kingdom, where it earned $4.8 million in its first two days of release.

“Thor: Ragnarok” brings back Chris Hemsworth as the Norse god, re-teams him with the Hulk (Mark Ruffalo), and introduces Cate Blanchett as Thor’s sister — the antler-sporting Hela. For extra novelty, Thor’s long tresses are hacked off, leaving Hemsworth with quite the buzz cut. Taika Waititi, the indie director behind “Hunt for the Wilderpeople,” is calling the shots on this one.

The tentpole is poised to debut to as much as $125 million when it opens in North America on Nov. 3. That would be a franchise-best bow.

Overseas, “Thor: Ragnarok” debuted to $2.3 million in South Korea, $1.9 million in France, $1.2 million in Taiwan, and $900,000 in Indonesia. In Korea, it was the best opening day for an October release.

Disney, the film’s backer, said the pic is matching the pace of “Doctor Strange,” which made $678 million globally, and is outstripping “Thor: The Dark World,” which finished its run with $644.6 million.

The movie will continue rolling out this weekend and will be open in around 52% of the international marketplace by Sunday. In the next few days, it will launch in such markets as Australia, Brazil, Denmark, the Netherlands, Portugal, New Zealand, and Chile.