I’ve begun watching “In Treatment,” an HBO TV series that ran from 2008-2010. The show depicts people with various problems and disorders in psychotherapy. It’s a great series, and the acting is quite believable. I’m not sure if any of the characters have NPD or BPD but if so, I’ll make sure to indicate which episode(s).
Here is the Youtube channel. You can watch all the episodes from here: https://www.youtube.com/channel/SW0u9_LW5e5fs