Contracts

There are 2 different types of contracts that can be used within the film and TV production industry, the first is the confidentiality contract and the second is the exclusivity contract.
Confidentiality contracts are used for very secretive projects, when the production companies do not want any kind of information or spoilers leaking to the public.  An example of when this type of contract will have been used recently is with the production of the new Star Wars film. During filming no photography of any kind was allowed on set. This was in order to make sure that the public did not receive any information that they were not meant to. Any photographs that were taken and placed onto social media would have been checked by senior members of production to ensure that everything that was include was okay.
Exclusivity is where a production company secures the rights to create a film or a TV show based on a story or already existing concept/idea. This type of contract also means that they are the only people with the rights to do so for as long as the contract states. The most common exclusivity contracts are used production companies whointented to produce a film or TV adaptation from a book. An example of where this was used is with Game of Thrones. Game of Thrones was orignally a very popular book entitled "A song of Ice and Fire" until HBO decided to use its story line to create their hit TV show.