DENVER (CBS4) – Theater lovers are very excited because the “Book of Mormon” is coming to Denver in August.

Some people camped out at the Denver Center for the Performing Arts box office overnight in hopes of buying tickets.

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The tickets are so hot they’re already being sold for hundreds of dollars above face value. After 4 hours, 25,000 single tickets that went on sale Sunday were sold.

There was a long line up to the ticket counter. Some tried to buy tickets over the phone at they stood on line. The Denver Center for the Performing Arts says if people hung up due to heavy call volume, that was a mistake.

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Others tried to buy tickets through a computer sale but were frustrated by the heavy volume of ticket buyers.

“We logged on to try and get a couple of tickets for the ‘Book of Mormon.’ We were on the server and through the payment screen and then it locked up and threw us out and we couldn’t get back on the server; kept getting server busy,” Ron Fernandez from Denver said. “(It) doesn’t surprise me. It disappoints me.”

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The Denver Center for the Performing Arts called the sale unprecedented. They’re also saying buyer beware because second party vendors may try to sell fake tickets.