The Twilight saga’s titles are never explained in the original novel series or their blockbuster movie adaptations, but they’re secretly a reflection of the character arc undergone by the main character Bella (Kristen Stewart in the movies). Released in 2008, Thirteen director Catherine Hardwicke’s Twilight was a gloomy, grey-tinged adaptation of Stephenie Meyer’s YA sensation the Twilight saga. The hugely successful paranormal novel series told the tale of Bella Swan, an ordinary teenager, and Edward Cullen (Robert Pattinson), the ageless vampire she falls in love with.
https://screenrant.com/wilight-titles-new-moon-eclipse-breaking-dawn-meaning-explained/