Walt Disney Studios

Tuesday was a big day for "Avengers" fans, who were treated to a new teaser for the final flick in the franchise, "Endgame," as well as the start of ticket presales for the hotly-anticipated film. But excitement soon turned to anger for many would-be moviegoers, as the overwhelming demand crashed multiple ticketing websites.

Sites including Fandango and AMC experienced a huge surge of traffic this morning as thousands of eager fans logged on to secure their seats for "Endgame." Unfortunately, many of them were met with error messages, screens that wouldn't finish loading, or queue times stretching into multiple hours.

Frustrated filmgoers took to Twitter to sound off, some of them chastising ticketing companies for their lack of preparedness, others simply lamenting the fact that they might not get to see "Endgame" on opening day.

According to Deadline, much of the trouble with purchases early on Tuesday could be chalked up to the sheer volume of ticketing requests. The trade reports that mobile retailer Atom Tickets saw "Endgame" generate a record number of tickets sold, with the film easily outpacing last year's "Infinity War" by a three-to-one margin in the first hour of sales.

It makes sense that "Endgame" is inspiring such a frenzy, since the film is the big swan song for many beloved characters. As several outlets have already pointed out, if you're having trouble purchasing tickets, keep trying. Marvel definitely wants your money, after all, and we have a feeling that theaters will add extra showings to keep up with the huge demand.

"Avengers: Endgame" hits theaters on April 26.