Thousands of Disney fans eager to watch their favorite movies were greeted with error messages Tuesday, hours after the debut of the Disney Plus streaming service had crushed its servers, the company said.

Users flocked to social media to update their followers on the anticipated event. Many could not begin the new Star Wars show “The Mandalorian.” Instead, they were greeted with a frowning character from the movie “Wreck-It Ralph” paired with a network error message, or Mickey Mouse stranded in space.

The problems for some users undercut a huge day for Disney, which has touted the streaming service as a major part of its portfolio. “The Mandalorian” is the flagship launch show for about 500 films and 7,500 episodes of programming from Pixar, Marvel, Star Wars, National Geographic and others.

“The demand for Disney+ has exceeded our highest expectations,” the company said. “We are so pleased you’re excited to watch all your favorites and are working quickly to resolve any current issues. We appreciate your patience.”

Thousands of complaints were flagged Tuesday morning, according to Downdetector, a website that collects complaints about websites and apps.

Disney spokeswoman Jessica Casano declined to say how many users experienced problems and how many successfully streamed content.

Disney chief executive Bob Iger set huge expectations for Disney Plus in his 2017 announcement for the service. “We’re going to launch big, and we’re going to launch hot,” he said.

Splashy debuts have bedeviled streaming services for years. HBO streaming buckled under the enormous demand on servers following April’s final season premiere of “Game of Thrones,” and the ESPN Plus app has had fits while streaming some UFC fights.

Those lessons informed Disney. In the lead-up to the launch, Disney executives said they prepared for the same problem of huge but predictable demand.

“We’ve built capabilities to sustain that, both in terms of processing the transactions that all come in — in a very, very short period of time — as well as the streams,” Michael Paull, the company’s head of streaming, told the Verge in August.

Disney Plus costs $6.99 a month, and a bundle of Disney Plus, Hulu and ESPN Plus will set you back $12.99 a month.

The service is available in the United States, Canada and the Netherlands, the company said, and will launch in Australia and New Zealand on Nov. 19, though it is unclear whether technical problems will persist through the week.

That second round of releases will also include Puerto Rico. Casano declined to explain why it wasn’t available there for the U.S. release Tuesday. Puerto Rico is a U.S. territory.

The rocky premiere of Disney Plus comes as the latest front in an escalating streaming war for your eyeballs. Apple TV Plus launched Nov. 1, taking on HBO, Hulu and Netflix. (Amazon chief executive Jeff Bezos owns The Washington Post.)

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