If you never saw The Usual Suspects, do not read forward. And GO WATCH IT!
In the Usual Suspects, one of my favorites, there is a scene after verbal describes keyser soze where the cops leave the office and discuss the fact that edie (sp) was meeting with a lawyer. The main cop asks "Kombayashi?" and the other two cops nod agreeingly, including the one who knew which lawyer she met with. However how could she have met with a lawyer named kombayashi if we find out that verbal got the name kombayashi from the bottom of the cops coffee glass at the end?
Sorry I had trouble explaining it but I have a feeling it is a flaw.