History of the Film Industry

Something that changed / impacted the film industry in the 1940's and 1950's...
During the 1940's many inventors were trying to improve the television model. Although the TV had already been invented in the early 1900's, people didn't purchase them in their homes until the 50's, and since then, television has been the main medium for moulding public opinion and the most popular media platform. 
Television has had a major impact on the film industry as it allowed people to watch films at home instead of going to the cinema (although the 1940's were the 'Golden Age for the Film Industry'). This applied especially to elder people, who did not visit the cinema often, or even ever. Watching films on the TV was an easier option in the comfort of their own homes. 
It also increased the acknowledgement of actors and actresses, for example Marilyn Monroe, who was the most famous actress of the 1950's. 
One negative effect of the television is that the number of people visiting the cinema has increased. But on the other hand, the capital has been made up from an increased number of cinemas and films released.
Following from the invention of the television, came video recording. The first videotapes were introduced in the mid 1950's and people were purchasing their own video tapes by the late 50's. This had an extraordinary impact on the film industry as a massive income was generated from the public buying films on tape. 
If the television had not been invented, then the film industry of today would be extremely different. For starters, people would not be able to watch as many films, therefore knowledge of the media and the industry would not have been great. Furthermore, if videotapes had not been introduced, then neither would have DVDs and the film industry would be a lot less better off, since a large proportion of money produced in the industry comes from DVD purchase.