WILMINGTON, Del. - Walt Disney Studios Motion Picture Production on Dec. 3 filed a brief in the U.S. Bankruptcy Court for the District of Delaware objecting to bankrupt Digital Domain Media Group's (DDMG) motion seeking approval to sell assets and contracts free and clear of all liens, contending that Disney still has patent rights (In Re: DDMG Estate, No. 12-12568, Chapter 11, D. Del. Bkcy.).