These are a few of my favorite things

One little "s".

It's the details which matter with the Mandela Effect, A world-famous song, deeply ingrained in everyone's memory due to it having been around for most of their lives, should have no room for error at all. So when this one started getting reported - about the change from singular to plural of the ending of the "packages" line, it started alarm bells ringing.

Some ME's are huge, lterally in some cases such as continents moving or even the Earth being transported 80,000 light years across the galaxy. However, if the effect is real it's entirely plusible it would manifest as small but noticable details such as this one.

Classic

This is the benchmark in world famous musical movies - the gold standard, if you like. Released in 1965 and starring Julie Andrews and Chrisopher Plummer, it was adapted from the 1959 Rodgers and Hammerstein stage musical, which in turn was adapted from The Story of the Trapp Family Singers by Maria Von Trapp. It tells the story of an Austrian family who have to survive their countries occupation by the Nazis in 1938. It was the highest grossing film of all time in 1966 - a year after it's release. It's still one of the most commercially successful films of all time, and even adjusted for inflation is in the top 10 - Gone with the wind is number 1. The movie has been slightly criticised for not being entirely accurate in it's portrayal of the Van Trapp family's plight - in particular the house was nothing like as grand as the one in the movie.

There's more

"Silver white winters that melt into spring" is also a line many remember, which makes sense, whereas today it is "Silver white winters that melt into springs". All very odd.