In one sense they are the same thing. An asterism is a recognizable pattern of stars. In the general sense, a constellation is the same thing. In a more technical sense, Constellation refers to an officially paritioned section of the sky within which are stars that form a well-known asterism.
The global movie and entertainment industry consists of organizations primarily engaged in the production and distribution of motion pictures and sound recordings. Online and mobile distribution of movies is expected to be the fastest growing sector in future with growing dominance of the internet experience over all content consumption and increasing broadband penetration.
Distribution is how albums get into shops. Distribution companies sign deals with record labels (or very rarely, directly with artists) that gives them the right to sell that label's products to record stores that have an account with that distributor.