"Sierra Burgess Is a Loser" is not based on a true story; it is a fictional romantic comedy film released in 2018. The movie follows Sierra, a high school girl who is a misfit and finds herself in a complicated situation when she is mistaken for a popular girl after a text mix-up. While the film touches on themes of identity, self-acceptance, and love, it does not draw from real-life events or individuals.

In "Sierra Burgess Is a Loser," Sierra and Jamey do end up together by the film's conclusion. After a series of misunderstandings and personal growth, Sierra reveals her true self to Jamey, and he appreciates her for who she is. Their relationship evolves from the initial catfishing scenario to genuine feelings, culminating in a heartfelt moment where they connect authentically. The film emphasizes themes of self-acceptance and the importance of being true to oneself in relationships.

At the end of "Sierra Burgess Is a Loser," Sierra stands up for herself and confronts her feelings about her identity and self-worth. After a series of misunderstandings and challenges, she reconciles with her love interest, Jamey, who learns the truth about her. Sierra also mends her friendship with Veronica, the popular girl who initially used her. The film concludes with Sierra embracing her true self, showing growth and a deeper understanding of friendship and love.

"Sierra Burgess Is a Loser" is a teen romantic comedy film on Netflix, released in 2018. It follows the story of Sierra Burgess, a smart but awkward high school girl who becomes involved in a case of mistaken identity when a popular boy, Jamey, mistakenly believes he is texting her when he is actually communicating with her more attractive classmate. The film explores themes of self-acceptance, identity, and the complexities of teenage relationships, featuring a mix of humor and heartfelt moments.