A storyline that played on the allure of eternal love has kept legions of Twilight fans returning to the theatre to see Edward and Bella on the big screen.

This week, the fourth and final instalment of the films based on Stephenie Meyers’ trilogy of novels about the world of vampires heads to cinemas.

Twilight — Breaking Dawn, Part 2, sees the romance between the 106-year-old vampire Edward Cullen and the ordinary American teen Bella Swan continue with Bella enjoying life as a vampire.

As CBC's Zulekha Nathoo reports, the idea of an ordinary girl caught up in an extraordinary love story appeals to a generation of young fans.

And the spinoff has been new interest in works about forbidden love, like 50 Shades of Grey, and new forays into the world of vampires, such as True Blood.