Martin Scorsese is synonymous with great American filmmaking. With nearly fifty years of experience under his belt, and countless era-defining hits like 'Taxi Driver' and 'Raging Bull,' he can safely be considered one of the best directors of all time.

So, when you’re able to attract someone of Scorsese’s caliber to direct the first episode of your new HBO series, you’re probably not going to correct his decisions. Unfortunately for Terence Winter, creator of the prohibition-era drama ‘Boardwalk Empire,’ this is exactly what he was tasked with doing when he noticed a historical inaccuracy.

While Scorsese is no stranger to the period film, he missed the fact that one of the characters was walking through a room full of women and not removing his hat, which was a big no-no in terms of 1920s etiquette.

Winter explained in the DVD commentary that before he went to alert Scorsese to the mistake, the assistant director was quick to inform him that “no one’s ever given [Scorsese] a note before,” making the task all the more unpleasant.

He added that the path to the director's chair was "the longest walk" of his life. Longer than the famous tracking shot from 'Goodfellas'. But it turns out, he needn’t have worried about correcting Scorsese. The director agreed with the change, and promptly had the scene reshot.

It didn’t seem to bruise their relationship, either, considering Winter subsequently helmed the script for Scorsese’s 2013 film 'The Wolf of Wall Street', proving that even the greatest directors can acknowledge a better idea when it comes along.  

h/t Mental Floss