Depends on how old you are when you see it. I was 17 and had no problems. The girl I was babysitting was 6 and got so freaked out by the goblins that I had to shut it off.
There was a music box in Titanic, although things did subsequently go pear shaped.
The music box from the western “From Noon Til Three”, and the slightly obscene music box from “The Stunt Man”(could someone find a music clip of that for me, please?)
Nitpickin’: It’s Bing Crosby, not his friend and frequent film-partner Bob Hope.
One of those old Basil Rathbone Sherlock Holmes movies from the late 30’s or early 40’s featured a large number of music boxes as part of the plot. The key ones were made in prison, and the slight variations in the tune for each box were a key to the location of
the maguffin.Then there is The Glass Menagerie, a play by Tennessee Williams, where the girl with a limp doesn’t have any “gentleman callers”. That, I believe, has a music box in it, and they have made movies of that a couple of times.
Roddy
Isn’t there a music box (of sorts) that the Tom Hanks character gives to Madison the Mermaid in Splash? And then he becomes all confused about how there’s no music in Madison’s world?
This one isn’t a horror movie as the term is usually understood:
but there IS a music box at the end.
Black Swan has a music box that IIRC plays the titular theme.
In the movie A Patch of Blue, Sidney Poitier gives Elizabeth Hartman a music box that belonged to his grandmother.
StG
In the movie being shot in the 1980 movie The Stunt Man has a wonderful animated music box, featuring sex between a bear and a girl.
**
Eli Cross:** [Sam has suggested including a risque artifact in a poignant scene] You’ll get a belly laugh, Sam!
Sam: What do you mean? What are you talking about? They’ll break their hearts over it!
Eli Cross: No no no, there won’t be a dry seat in the house!
Post #23…but thanks for the details. 
There’s one in Mad Max 2
shakes fist Got through almost the whole thread without one mention of the miniature one Max gives the Feral Kid.
One of the Basil Rathbone Sherlock Holmes movies from the 40’s features not 1 but THREE! music boxes. “Dressed to Kill”, 1946.
I just watched “The Scapegoat,” in which the protagonist gave a music box to his “wife.” It played a song that was meaningful to them.
The Shop Around the Corner isn’t scary at all – it’s an old romantic comedy starring Jimmy Stewart – and part of it involves the shop trying to sell cigar boxes that play music when opened.