Does metal shatter if cold enough?

It is scientifically accurate.
If you lower the temperature low enough you can shatter anything.
That's because all materials have a structure made up of atoms and molecules that solidify and strengthen within a certain temperature range.
If you go way beyond it's temperature range, you alter the structure's integrity.
I think !

In people it will cause gangrene due to frost bite. Don't know about rocks. Yes metal becomes brittle at low temperature, don't know about all. This was one of the reason titanic suffered its fate when it hit the ice berg as water was so cold. This phenomenon is known as ductile to brittle transformation at low temperatures.

Below a certain point, the atoms get even closer, in solids they are the closest, which is different bonds holding the atoms in different shapes, but at lower temperature, metals don't go any closer. So, if I freeze an iron bar, it will be still an iron bar. It won't get brittle just like they show in TVs, unless they react with some other metals to undergo a change in chemical composition.
Having said that, metals shattering at low temperature is an example of comic book physics. If it was real, people using metal claws to climb Everest would never make it to the top.

If you get anything cold enough to stop molecular motion it will become brittle enough to shatter like that, this is aided by many metals and metal alloys forming crystalline lattices in a crystal there is usually one direction of impact that it is strong in and another direction in which you shift positive molecules off of negatives and the pole shift forces them apart at straight lines, which appears on the macro level as "shattering"

I worked in the Canadian Arctic, it would get cold enough that axles on heavy equipment would break.

It's true that most things get very brittle when very cold. It never gets very cold where I live so I have no idea about how brittle for how cold... :)

Freezing something at a certain temperature weaken the structure integrity not a 💯 percent sure if that true but it has come across my mind a few times,

anything that can be moved into a crystalline condition or anything that can have molecular motion stopped or slowed can shatter like that. Freezing things is about slowing or reducing energy -- during which molecular motion would slow.

It`s well known here in Canada that railroad rails will fracture if they stay cold long enough. Not shatter, but fracture.

Actually the same thing would apply to Rock, wood or people if you get them cold enough

Yes it will. Does and has...I.E. The Titanic