The first few parts of the movie is kind of weird, with all the maladaptive daydreaming of Jane and the excessive use of beers, cigs and profane words, but past that is what make Fan Girl a great movie.
It's a metaphor of how a person escapes her reality with her fantasy but realizing that you can't escape the real world. It also shows how blind fanaticism and passionate support to a personality can affect a person's judgment.
The acting is superb. We all know that Paulo Avelino is great, but Charlie Dizon is something else. She portrays Jane perfectly and her acting is on the same level as her co-star.
Review of Fan Girl
