Many attribute the theorized existence of this alleged cut to the improvisation of the late Robin Williams, who is said to have tried a number of things across different takes.
A recent viral tweet alleged that there are four cuts of Mrs. Doubtfire in existence, ranging in ratings from PG to NC-17.
Sometime before this tweet began making the rounds, film co-star Mara Wilson also mentioned the possibility of multiple cuts but could not confirm the existence of an NC-17-rated one.