Take a look at this scene from the 2014 film That Awkward Moment (which is sneaky pretty good):
At the end of the clip she says "I brought Scotch--I don't know if you guys drink Scotch?" The thing is, it's clearly not Scotch. It's a very recognizable bottle of Bulleit rye whiskey. I don't understand how this possibly made it into the movie. With all the people on set (and editors after the fact), how did nobody catch this?
The crazy thing is, this mistake shouldn't even fly among the four characters in the scene, let alone the hundreds of people involved in the real-life production.
Assuming she somehow bought the booze (which likely would've been on a shelf marked "whiskey" or "rye") without looking at the label and realizing it's not Scotch, the chances are extremely high that at least one (if not all) of the three well-to-do 20-something New York City bachelors (who spend a lot of time drinking in bars) would immediately know what it actually was.
I have a hard time believing none of those four actors even noticed, let alone all the other pairs of eyes and ears that were on this before the movie was released. It seems unfathomable that this error wasn't discovered. Or did they just not care? And if that's the case, it bugs me just as much.