Snarf Zagyg
Notorious Liquefactionist
OK, let's just skip the blockbuster thing and take this idea straight to Bollywood. This needs a musical number or 10.
RRR- The Drizzt Story. I'd watch.
That said, I think that most people are dancing around the issue. In 2008, Tropic Thunder parodied the concept of miscasting in Hollywood by using Robert Downey Jr. in blackface.
Fifteen years later, the topic is so radioactive that there are people that criticize the film for doing this, even when it was critiquing (satirizing) the practice. Look, there is an episode of Community (Advanced Dungeons & Dragons) that was removed from streaming services because one of the characters dressed up as a Drow. So it's not like this would be an unexpected controversy ... and again, that was in an episode that was critiquing the practice.
The idea that Ryan Gosling (??!!??) would want to star as a Drow, given the baggage inherent in that, or that WoTC or any Hollywood studio, would knowingly step on that landmine, is simply crazy.