A local credit union is warning customers that there are some fake bills being circulated around town that are actually meant to be used on a movie set.

The Penobscot County Federal Credit Union posted Tuesday on its Facebook about "replica money." The bills are very realistic at first glance. But if you look closely at the bills, you'll realize there's something fishy.

The word "replica" is printed on either side of the bill, the small banners on the front and back of the bill read "this is a replica," and the face side of the bill says, "this note is not legal. It is to be used for motion pictures." It seems pretty obvious but, let's face it, how often do you really look at the money in your pocket?

One other tell-tale sign that they're fake bills is the fact that they all have the exact same serial number: KP 58247039 Y. Credit Union officials did some research and found that the bills are being passed around across the country.

Keep this in mind as you go through your day, and take a few extra seconds to check that bill closely before accepting it and putting it in your pocket.