One Day at Disney on Disney+ has a new episode (Episode 33) where you can see inside the construction of Ratatouille at EPCOT. The filming is probably dated around May 2019 but it's the first time we have seen inside the construction.
Another huge element of the ride is this projection screen. Although attractions such as Soarin’ Around the World utilize large-scale screens like this, it is rare we get to see them up-close and switched off like we do here. The screen is domed, and the attraction will enable the trackless vehicles to steer close to the projected action for a truly immersive experience
Source: https://wdwnt.com/2020/07/review-one-day-at-disney-episode-33-on-disney-gives-us-a-closer-look-inside-upcoming-remys-ratatouille-adventure-attraction-in-epcot/?utm_source=dlvr.it&utm_medium=twitter&utm_campaign=review-one-day-at-disney-episode-33-on-disney-gives-us-a-closer-look-inside-upcoming-remys-ratatouille-adventure-attraction-in-epcot