Two Oklahoma City movie theaters posted warnings that watching the movie "Cloverfield" could make them nauseous, KOCO.com reported.

The warning signs, according to the report, read: "Due to the filming method used for "Cloverfield," guests viewing this film may experience side effects associated with motion sickness, similar to riding a rollercoaster."

Theater managers have received several complaints, and in some cases have had to refund tickets, according to the report.

Click here to read the full KOCO.com report.

"Cloverfield" is the story of five young New Yorkers experiencing a monster the size of a skyscraper descending on the city, according to imdb.com.

Click here to for more about the movie from imdb.com.

The movie is told from the point of view of their video camera, the Web site reports.