I love watching videos like this…
(of previz animatics edited in with real footage to see how their visualisations and imaginations later came to fruition)
https://twitter.com/jamieswb/status/1360265619489361923 - with 80 second video of The Battle Of Hoth
https://twitter.com/jamieswb/status/1360236372406267906 - with 50 second of the Imperial Probe Droid & Luke vs Wampa