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.
The entertainment industry (informally known as show business or show biz) is part of the tertiary sector of the economy and includes a large number of sub-industries devoted to entertainment. However, the term is often used in the mass media to describe the mass media companies that control the distribution and manufacture of mass media entertainment.