I watched a documentary called “Suits” a while back about a corporate legal firm and that convinced me that you are wrong. Those well dressed professionals will use anything you say against you in the court of law!
I am afraid you failed to read the fine print ;) I think the average legalese boilerplate is along the following lines: All characters and events depicted in this film are entirely fictitious. Any similarity to actual events or persons, living or dead, is purely coincidental.