If you've got a smartphone or a phone with a mobile browser, Yahoo! Movies and Regal Cinemas wants to give you free popcorn this summer, according to livingrichwithcoupons.com.

Just go to movies.yahoo.com/popcorn and follow the instructions to get a free bag of popcorn after you arrive at one of three theaters: the UA Movies at Marley Station mall, the UA Cinema at Snowden Square or the Regal Hunt Valley Mall.

From a mobile phone with GPS, you can go to the free popcorn mobile site.

The offer lasts until August 31 or until they give away 1 million bags of popcorn, whichever comes first.

How else are you saving money on Cheap Trick Thursday?