You really should get permission before hand… 12 monkeys had some sets that flew a little close to concepts by “architectural theorist” Lebeous Woods. they weren’t exact copies but close… he sued… I think he won…
same thing happened with “the devils advocate” where there was a large set piece with wrthing figures around a door arch that came to life… they got sued by the sculptor thery ripped off… that sequence got dropped fromn the DVD and all subsequent versions…
It’s better to get permission “up front” thna to get sued for money you don’t have later down the line…
depending on your intention and projected scale you may welll get what you want free…
Tim Burton got Vincent Price to do the voiceover for his student film “Vincent” for free! (when Tim was an unknown student rather than internationally acclaimed director) simply by writing to him to ask…