NEW YORK, N.Y. - A production company making a documentary about the song "Happy Birthday to You" is challenging the copyright to the famous jingle.

Good Morning To You Productions Corp., which is working on a film tentatively titled "Happy Birthday," argues in a lawsuit filed Thursday that the song should be "dedicated to public use and in the public domain." The company is seeking monetary damages and restitution of more than $5 million in licensing fees collected by Warner/Chappell Music Inc. from thousands of people and groups who've paid it licensing fees.