According to the source this video was shot in Hollywood and depicts a terrorist talking to the camera with a hostage beside him. The site says Hollywood, but I have no idea how to verify where this is being taken. If the quality was better we could see if the hostage's face matches up with anyone ACTUALLY missing, but I don't think we can. It looks pretty legit, or at least it does to an amateur like me.
https://youtu.be/rqE396Uk6ZY
Source: _http://www.conspiracyclub.co/2015/07/11/busted-isis-in-hollywood-studio-leaked/
https://youtu.be/rqE396Uk6ZY
Source: _http://www.conspiracyclub.co/2015/07/11/busted-isis-in-hollywood-studio-leaked/