'Guardians of the Galaxy' Fans Reportedly Surprised by Rise of the Guardians in Theaters

It may have seemed like the makings of a perfect opening night: perhaps popcorn, soda, great seats, the whispering of an excited crowd as the lights went down for a midnight first peek at "Guardians of the Galaxy."
The previews rolled, and then ... whaaaat?
"omg," one moviegoer tweeted. "they started playing rise of the guardians instead of guardians of the galaxy."
How in the galaxy did that happen?
"EVERYONE IN THE THEATRE IS CRYING," the tweeter added.
Then it happened again ... and again, possibly in more than one location, according by the tweets.
Regal Cinemas, a theater chain cited in some tweets, did not immediately respond to ABC News' requests for an explanation or other comment confirming or denying the tweets.
In case you didn't know, "Guardians of the Galaxy," the comic book-inspired summer blockbuster hitting U.S. theaters today, is not the same as "Rise of the Guardians," a 2012 Dreamworks animated film in which Jack Frost, Santa Claus, the Tooth Fairy and the Easter Bunny team up to fight the Boogeyman, according to IMDB.com.
