Copyleft is designed as an alternative to standard copyright, which gives the author of the work the right to restrict outside parties on what they can do with their work. Through the Copyleft standards, the author gives any person who comes in contact with a copy of the work the right to reproduce, adapt, or distribute the work as long as any subsequent copies are also held with only the Copyleft license. This means that the work could be used by the digital video producer, but their final product would have to only hold a Copyleft license and none other. If the producer was to utilize a work that has a Copyleft license and then their final film has a standard copyright on it, then they would be in violation of the Copyleft restrictions. Though standard copyright is still more restrictive, the restrictions for Copyleft are very serious to the standard digital video producer who may want to use their project for financial or mass distributive purposes. Because of this there are entire realms of Copylefted material that cannot gain regular copyrights, and because of this many people who desire to use Copyleft only apply that license to part of the work while allowing the other parts to remain Public Domain or Share-Alike.