You can easily open up the AntispyX by just giving it a little pry at the volume buttons or by your lightning port. The magnets that hold the case together are strong magnets so you won’t find your phone outside of the AntispyX if you drop it.
No the Screen Protector that comes with the AntispyX is fully transparent. You can use your phone’s full ability without any interruptions.
The Privacy Film is the same stuff that is used to make pictures move when you view them from different angles. The Screen itself is made of Tempered Glass and the Privacy Film does not fade over time.