These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: When Worlds Collide
From the 1951 film:
Special Effects Failure: The not entirely convincing matte painting of Zyra at the end of the movie was originally meant to be a preliminary sketch. Unfortunately due to time and money constraints the artist wasn't able to produce a better work in time to be filmed.
Unfortunate Implications: All of the people selected for the rocket project are white. Slightly handwaveable as this was made in the 50s, but still...