Use case diagram

Use case description

Use case name:	Retrieve movies
Primary actor(s):	User
Secondary actor(s):	N/A
Brief description:	The user can see the movie information
Preconditions:	The user has logged in the system.
Flow of events:	1. The user chooses the movie to see its detail info. 2. The system provides the detail information for the movie.
Post conditions:	None
Priority:	High
Alternative flows and exceptions:	None