A major aspect of entertainment law involves intellectual property negotiations and disputes about who owns the rights to songs, books, movie scripts and videos. Much of the work an attorney in the field does involves negotiating these rights and forming contracts. This can be complex and detailed work involving the rights of many people and businesses. With so much money at stake, disputes about the contract are frequent. Therefore, another aspect to the work is litigation. A lawyer who practices in the entertainment law field thus often is expert in both business and litigation.