Movie Rental ER Exercise
  - A store a name and an an address. The name is unique.
 
  - A staff (member) has a first name, a last name, an address, and an email
 
  - A store employs at least one staff
 
  - A staff must work at a store
 
  - A store is managed by one staff
 
  - A film has a title, release year, a rating, a rental rate, and a rental duration
 
  - An actor has a name, a birthdate, and a set of specialties, e.g. comedy, action
 
  - An actor appears in many films
 
  - A film features many actors
 
  - A store has one or more films in its inventory
 
  - A customer has a first name, last name, address, and email address
 
  - A customer rents a movie from a store