A few things that stuck with me:
Amy keeps insisting that PTA is a jerk in real-life based primarily on stories of him being "difficult to work with" from 20 years ago (Rysher, Burt Reynolds, etc.)
Devin keeps saying Boogie Nights has a happy ending. Everybody knows Boogie Nights is the ultimate happy-sad ending.
Amy says Dano's performance is better than DDL's in TWBB.
There's more, as I said, about once a minute I wanted to stop it and interject something. It's probably just the 'ol Xixax thing where we know these movies inside and out, better than most of the people discussing them.