i saw this american horror film on tv when i was quite little so probably around 2005.

all i can remember is:

• a bunch of teenagers or get trapped or sent to this underground bunker in the woods.
• throughout the film it switches between their personal stories of them afterwords in therapy.
• they are being recorded when they’re underground by camera and microphones.
• either they are already friends or they form alliances when they are forced together
• some of them have fights and i think two of them have sex which really upsets someone..

if someone recognises this please tell me i always think about it and no one else knows what i’m talking about!!