Main Cast;

Kristen Stewart as Bella Swan, a young teenage girl who lives in the small town of Forks and falls deeply in love with the vampire,Edward Cullen.He leaves her in the movie after his brother tries to kill her.She is heart broken but realizes that Edward still comes to her as a spirit image if she seeks danger. She grows very close to a good friend named Jacob in the movie but she can’t let go of Edward.
Robert Pattinson as Edward Cullen, Bella’s vampire boyfriend who abruptly leaves town to protect her. He appears as a spiritual figure if Bella ever gets in danger. He has a rival with Jacob Black because of his love for Bella and the fact of the rivalry between vampires and wolves.
Taylor Lautner as Jacob Black, A good childhood friend of Bella’s who helps her after Edward leaves and drops hints in the movie that he is in love with her. He shows no interest in Edward because Bella loves him and because of their rivalry. He reminds Bella several times in the movie about how Edward just left her and he could do better for her(meaning to be with him and leave Edward.)He is shown to be a werewolf and Bella shortly finds out after he continues to ignore her although after she does,he becomes close with her again.He is also afraid of putting Bella in harms way and saves her from drowning after she jumps off a cliff. He is afraid to admit he loves her. and transforms into a werewolf.
Ashley Greene as Alice Cullen, a member of the Cullen family who can see “subjective” visions of the future and who becomes best friends with Bella.

Plot;

On her 18th birthday, Bella Swan (Kristen Stewart) wakes up from a dream in which she sees herself as an old woman. She expresses her distaste with growing older than her boyfriend Edward Cullen (Robert Pattinson), a vampire who stopped aging physically at 17. Despite her lack of enthusiasm, Edward’s adoptive family throws Bella a birthday party. While unwrapping a gift, Bella gets a paper cut, causing Edward’s brother, Jasper (Jackson Rathbone), to become overwhelmed by her blood’s scent and attempt to kill her. Realizing the danger that he and his family pose to Bella, Edward ends their relationship, and the Cullens leave Forks, Washington.
Edward’s departure leaves Bella heartbroken and depressed for months. However, when her father, Charlie (Billy Burke), decides to send her to live with her mother in Florida, Bella agrees to spend time with her friends. After seeing a movie with Jessica (Anna Kendrick), Bella sees a group of men on motorcycles. This reminds her of when Edward previously rescued her from an assault, and she sees his image warning her to stay away. Bella discovers that thrill-seeking activities evoke Edward’s preserved image. She is also comforted by her deepening friendship with Jacob Black (Taylor Lautner) , a cheerful companion who eases her pain over losing Edward. When Jacob suddenly begins avoiding her, Bella discovers he has become a werewolf, an age-old enemy of vampires. Jacob’s pack members are on constant patrol for Victoria (Rachelle Lefevre), a vampire searching to kill Bella due to the death of her mate, leaving Jacob little time to spend with her. Alone again, Bella returns to seeking thrill-inducing activities.
Through a series of miscommunications, Edward believes Bella has killed herself after she jumped off a cliff into the ocean. Distraught over her supposed suicide, Edward travels to Italy to provoke the Volturi, a powerful vampire coven capable of killing him, by exposing himself in the sunlight. Alice (Ashley Greene), Edward’s sister, and Bella rush to Italy to save Edward, and arrive just in time to stop him. It is then that Edward tells Bella that he always loved her and only left to protect her. However, the Volturi determine that Bella, a human who knows that vampires exist, must either be killed or transformed into a vampire herself. Alice stops them from killing her by sharing her premonition with Aro, a Volturi elder who is able to read thoughts, in which Bella has been transformed. Soon after, they return to Forks and Bella forgives Edward for leaving her. The Cullens vote in favor of Bella being transformed into a vampire, to Edward’s dismay. However, Jacob reminds Edward of the treaty the Cullens made with the Quileute tribe: they will not attack each other, as long as the Cullens do not bite any humans. The movie concludes with Edward telling Bella that he will change her into a vampire if she marries him first.