Encryption can be considered as putting a lock on the content. The content is transformed by applying the encryption algorithm in conjunction with the encryption key. During the encoding process files must be encrypted to allow for secure transport of feature content. DCI adopted the AES (Advanced Encryption Standard) 128 bit encryption. AES 128 is the standard approved for U.S. government information classified to the SECRET level. Encryption is thus Hollywood’s primary concern (fear) when it comes to digital cinema.