Missing (2011)

"Five friends go to A VIP private party in a paradisiacal tropical island surrounded by rainforest in Ilhabela, Brazil."

A VIP private party in a tropical island surrounded by rainforest. The invitation, a small video camera (flipcam) that you have to wear around your neck at all times. The cameras record randomly and you never know when they are on. Sounds like the best and sexiest party ever? It is until a group of friends disappears in the forest. After weeks their cameras are found, on them we discover what has happened, and why the authorities did not want these images to be revealed.