I remember from the trailer it was about this guy that was talking to his friend about a girl from school wondering what she might be doing now and the friend reminds him of another girl and shows him her site(as in-she s a pornstart now). He ends up finding her playing her guitar or in a reading group or smthing like that and they go for a walk together or smthing and that s how it starts
Could this be infamous Paris Hilton turkey The Hottie And The Nottie? https://en.wikipedia.org/wiki/The_Hottie_and_the_Nottie