Free will
Free will is a topic that has been addressed in several ways throughout the Lonelygirl15 series. According to Wikipedia, "The question of free will has been a central issue since the beginning of philosophical thought."
We get our first indication that free will might be an issue in the early videos when we see a picture of Aleister Crowley on Bree's bedroom wall. Crowley is perhaps best known for his seemingly contradictory but esoterically linked instructions, "Do what thou Wilt shall be the whole of the Law" and "Love is the law, Love under Will".
In the video How My Parents Met, Bree tells us that her parents first met when her mother stepped into a discussion that her Bree's father was having with a friend about the play Rosencrantz & Guildenstern Are Dead. Bree's mother believed so passionately in free will, that she felt compelled to walk over to the man who was saying that determinism was the theme of the play (Bree's father) and tell him that he was completely wrong. Since the theme has received such attention in this video, it is likely that free will will continue to develop as a theme in the lonelygirl15 series.