It's an american movie from the 90's or 2000-something.
Roughly it has two main characters a man and woman. They are to be formed as secret agent. I only remember one passage: they are both kidnapped and sequestrated by an unknown group of men. These men try to mentally and physically break them. Finally it turns out that it was part of their training as special agents and that all that time they were in fact imprisoned in a container in a big hall where the other 'students' could follow their ordeal.