The difference between a polyamorist and a swinger is that a polyamorous person has broad-spectrum involvement in their partners' lives, including love.
Swingers are largely there for the sex, often for the novelty of an unfamiliar partner. The Love Triangle or Love Dodecahedron can develop into this.
The term "polyamorous" can refer to the nature of a person's relationships at some point in time or to a philosophy.
For more details and some Real Life tidbits, visit Useful Notes On Polyamory.
Truth in Television, obviously, though how culturally accepted it is varies wildly depending on the place, time period, and social standing.
Individuals who identify as polyamorous may consider themselves "Ethical Sluts".
This page provides a listing of movies with a polyamorous theme.Some of the movies present the concept in a positive light, others in a negative light, and others offer no judgment.