RIB MOUNTAIN — Phony bills used in the movie industry are being passed at local businesses, prompting police to warn residents and business owners to watch for the fake cash.

Phony $20 bills have been passed in the Rib Mountain area, while in Medford, businesses have been duped into accepting $20, $50, and $100 bills, police said. The bills look and feel like the real thing, but they have the words, “MOTION PICTURE USE ONLY” printed on the front and back.

This isn’t the first time movie money has made its way into the area. Tomahawk police alerted the public in November that fake money was being circulated there. In other states, scammers have used the phony bills to buy items sold on Craigslist or other in-person transactions.

Fake money can be bought online. A stack of “aged” bills is available on Amazon for about $30. Police are asking the public to be on the lookout for these bills.