I was in Cuernavaca Mexico on vacation and my daughter wanted to do anything not Mexican (14yrs old). Since she had been great about the trip and being taken to multiple museums we took her out for a night at the mall and a movie. She and my wife saw Memiors of a Giesha, while I chose this movie because the start time was about the same. Knew nothing about it and was so pleasantly surprised at the good structure in the writing and the director excellent execution of the script. The acting was okay and really only one character seemed a characture(sp?). Predicted the ending but that is nothing new and good writing will lead you there without being blatent about the ending. Really enjoyed how it played on my own fears of being trapped underground. Good use of dark and limited light. will probably own it some day.