Dis nie dat genres verander nie—dis net dat hoofkarakters verander.

Dis is the very common spoken-and-written contraction of Dit is, meaning it is.

So:

• Dis nie dat ... nie = Dit is nie dat ... nie = It’s not that ...

Afrikaans uses dis extremely often in everyday language, much like English uses it’s instead of it is.

This is one of the most famous features of Afrikaans: standard negation is usually double nie.

So:

• Dis nie dat genres verander nie literally follows the pattern not ... not

In many Afrikaans negative sentences:

• the first nie appears after the finite verb or early in the clause
• the second nie appears near the end of the clause

Examples:

• Ek verstaan nie. = I do not understand.
• Hy is nie hier nie. = He is not here.
• Dis nie waar nie. = That is not true.

In your sentence, the first clause is negative:

• Dis nie dat genres verander nie

The second clause is not negative, so it has no nie:

• dis net dat hoofkarakters verander

Here dat means that and introduces a subordinate clause.

So the sentence is structured like this:

• Dis nie dat
  • subordinate clause
• dis net dat
  • subordinate clause

In English, this is like:

• It’s not that genres change
• it’s just that main characters change

Afrikaans often uses dat after expressions like dit is nie dat ... nie and dit is net dat ....

Because dat introduces a subordinate clause, and in Afrikaans subordinate clauses the main verb usually goes to the end.

So:

• dat genres verander
• dat hoofkarakters verander

Compare a main clause:

• Genres verander. = Genres change.

But after dat:

• Ek weet dat genres verander. = I know that genres change.

This verb-final pattern is very normal in Afrikaans after conjunctions like dat, omdat, as, terwyl, etc.

Here net means just.

So:

• dis net dat ... = it’s just that ...

Afrikaans net can mean different things depending on context, such as:

• just
• only
• simply

In this sentence, net softens or narrows the statement: the speaker is saying the issue is not one thing, but simply another thing.

Hoofkarakters means main characters.

It is made up of:

• hoof = main / principal / head
• karakters = characters

So literally it is something like main-characters.

This kind of compound formation is extremely common in Afrikaans. Like Dutch and German, Afrikaans often builds nouns by joining parts together.

Related examples:

• hoofstad = capital city
• hoofweg = main road

Genres is a normal Afrikaans word, borrowed through the same international source as English genres. So it looks very familiar to English speakers.

A few things to notice:

• the singular is genre
• the plural is genres
• pronunciation may differ from English, even though the spelling looks similar

Afrikaans has many words of international origin that look close to English or French forms.

Yes. Dit is nie dat ... nie is fully correct.

But Dis nie dat ... nie sounds more natural and everyday in most contexts, just as English usually prefers it’s not that ... over it is not that ... in ordinary speech.

So:

• Dit is nie dat genres verander nie ...
• Dis nie dat genres verander nie ...

Both are correct, but dis is the more common form in normal usage.

Afrikaans often leaves out the definite article when speaking generally.

So:

• genres verander = genres change
• hoofkarakters verander = main characters change

This is similar to English when speaking about things in general:

• Dogs are friendly.
• Genres change.

If the speaker meant specific ones, Afrikaans could use die:

• die genres
• die hoofkarakters

But in your sentence, the nouns are being used in a general sense.

Very literally, it is:

• Dis nie dat genres verander nie = It is not that genres change
• dis net dat hoofkarakters verander = it is just that main characters change

So the pattern is:

• It’s not that X happens — it’s just that Y happens.

This is a very useful Afrikaans structure for correcting or refining an idea.

The dash separates two closely connected parts of the thought:

• Dis nie dat genres verander nie
• dis net dat hoofkarakters verander

It works a bit like a strong pause, stronger than a comma and often more conversational in tone. In English, you might also write:

• It’s not that genres change—it’s just that main characters change.

So the dash helps highlight the contrast between the two halves.

Yes. The dash connects the second part to the first as part of the same sentence, so dis stays lowercase.

If these were written as two separate sentences, then it would be capitalized:

• Dis nie dat genres verander nie. Dis net dat hoofkarakters verander.

With the dash, it is still one sentence.

A more expanded version would be:

• Dit is nie dat genres verander nie — dit is net dat hoofkarakters verander.

That is grammatically the same, just less contracted.

In everyday Afrikaans, though, the version with dis is very natural:

• Dis nie dat genres verander nie—dis net dat hoofkarakters verander.