The TVTropes Trope Finder is where you can come to ask questions like "Do we have this one?" and "What's the trope about...?" Trying to rediscover a long lost show or other medium but need a little help? Head to Media Finder and try your luck there. Want to propose a new trope? You should be over at You Know, That Thing Where.
You seem to be asking two questions.
In response to Sequel retcons facts from the original work: There are a lot of different possibilities depending on the exact things being changed and how long the series has been running. Retcon and Canon Discontinuity are probably the two most basic. Long runners start getting Continuity Snarl or Broad Strokes. If it's just the ending of the prior installment that is retconned, you might have a Sequel Reset.
If a change is not present in the published work and this is only what the directors and writers are saying in their own time, then that's a whole 'nother thing. If the work got it wrong and they're setting the record straight, it's Word of God. If their answers are completely illogical, it's Lying Creator or Flip-Flop of God, or maybe Trolling Creator if they're doing it on purpose. There are probably a few other possibilities, but it'd be in that area.
Edited by KD
I see, thanks for the answer. I'll figure out which one I'm looking for.
What's the trope for when the director of a sequel series states things that just weren't true in the original work? Is it simply a Retcon or does it have a more specific name when it's not said in the show, but the director/writers themselves are saying it that just leaves fans going "Did they even watch the original show??"
Edited by Lancelot07