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.
Base Breaker: The Mini Series remake. The YouTube comments on the trailer are all arguments as to how they changed the setting to Paris, made the Castavets younger, cast an "ethnic" actress as Rosemary (along with arguments as to just what ethnicityZoe Saldana isnote Half-Dominican, half Puerto Rican by the way), remade it in the first place...
Rosemary is fed some type of Satanic roofie before getting raped. Roman Polanski would know all about that...
Roman Polanski makes a movie about a cult targeting a pregnant woman and 2 years later The Manson Family kills his wife Sharon Tate who was 8 months pregnant.
The apartment building used in the film is actually the Dakota, now best known as the site of John Lennon's murder. The entryway where Lennon was shot to death is prominently featured. Even stranger, the murder of Roman Polanski's wife at the hands of the Manson Family was called "Helter Skelter" which, of course, is the name of one of the Beatles' most famous songs.
The Satanic Panic, a witch-hunt that took place in the '80s and '90s in the US and UK (yes, that's the 1980s-90s) involved innocent people getting jailed for life over some pretty wild accusations that were sometimes awfully close to the story of this film.
Narm: Maybe it's Seinfeld Is Unfunny, but a bunch of senior citizens chanting "Hail Satan!" may not quite have the effect on modern viewers as it did when the movie was released.
Sequelitis: Look What's Happened to Rosemary's Baby, a 1976 Made-for-TV Movie about Rosemary's now-grown son Adrian struggling to adjust to adult life and his role as the Anti Christ, features Ruth Gordon but little else that made the original film worthwhile.
The Woobie: Rosemary. All she wanted was a baby, but she just HAD to live next door to Satanists, and her husband just HAD to be a complete asshole that would sacrifice Rosemary to them just for a freaking part in a play.