En esa comedia, cada escena es más divertida que la anterior.

En means in, so En esa comedia means In that comedy.

It sets the context first: we are talking about what happens within that comedy. In Spanish, it is very common to begin a sentence with this kind of context phrase.

• En esa comedia, cada escena...
• In that comedy, each scene...

You could also move it later:

• Cada escena en esa comedia es más divertida que la anterior.

But the original version sounds very natural and highlights the comedy first.

These are demonstratives, and they show relative distance:

• esta comedia = this comedy (close to the speaker)
• esa comedia = that comedy (not right here; often near the listener or already mentioned)
• aquella comedia = that comedy over there / that one further away

So esa comedia is the normal choice for that comedy in many everyday situations, especially when referring to something already mentioned in conversation.

Because cada is followed by a singular noun in Spanish.

So:

• cada escena = each scene
• not cada escenas

And since escena is singular, the verb is also singular:

• Cada escena es... = Each scene is...

This is the same idea as in English: each scene is, not each scene are.

More examples:

• Cada libro tiene un título. = Each book has a title.
• Cada persona piensa diferente. = Each person thinks differently.

Because divertida agrees with escena, and escena is a feminine singular noun.

So the adjective must also be feminine singular:

• la escena divertida
• cada escena es divertida

If the noun were masculine, you would use divertido:

• Cada acto es más divertido que el anterior.

Agreement is very important in Spanish:

• escena → feminine singular → divertida
• acto → masculine singular → divertido

This is the standard Spanish pattern for comparisons:

• más + adjective + que = more + adjective + than

So:

• más divertida que la anterior = more entertaining/funnier than the previous one

Other examples:

• Este libro es más interesante que ese.
• Madrid es más grande que Valencia.

In your sentence, the structure is:

• cada escena = each scene
• es más divertida = is more entertaining
• que la anterior = than the previous one

Because Spanish often leaves out a noun when it is already obvious from the context.

Here, la anterior means the previous one, and one refers to scene.

So the full idea is:

• cada escena es más divertida que la escena anterior

But Spanish usually shortens that to:

• cada escena es más divertida que la anterior

This is very natural and avoids repetition.

Because in Spanish, adjectives can be used like nouns when the context makes the meaning clear. This often requires the definite article.

So:

• la anterior = the previous one
• literally, the previous

The article la shows that we are talking about a feminine singular thing already understood from context, namely escena.

Compare:

• el primero = the first one
• la última = the last one
• los mejores = the best ones

Yes, you could, but the nuance changes a little.

• divertida = entertaining, enjoyable, fun
• graciosa = funny, amusing, laugh-inducing

So:

• más divertida suggests each scene is more entertaining/fun
• más graciosa suggests each scene is funnier

In a comedy, both can work, but divertida is slightly broader. A scene can be divertida even if it is not strictly laugh-out-loud graciosa.

It refers to the previous scene.

So the sentence compares each scene with the one immediately before it:

• scene 2 is more entertaining than scene 1
• scene 3 is more entertaining than scene 2
• scene 4 is more entertaining than scene 3

That is the natural interpretation.

It is very natural here because En esa comedia is an introductory phrase.

• En esa comedia, cada escena es más divertida que la anterior.

The comma helps separate the context from the main statement.

In less careful writing, you may sometimes see it without a comma:

• En esa comedia cada escena es más divertida que la anterior.

That is still understandable, but the version with the comma is clearer and more standard.

Yes. Comedia can refer to:

• a comedy film
• a comedy play
• a comedy series
• the genre of comedy in general

So this sentence could describe many kinds of works, depending on context. Without more information, comedia simply means comedy.

Both anterior and previa can relate to something earlier, but anterior is the most natural choice here for the previous one in a sequence.

• la anterior = the previous one
• la previa can exist, but it is less idiomatic in this exact pattern

For ordered sequences like scenes, chapters, days, pages, and so on, Spanish very often uses anterior:

• el capítulo anterior = the previous chapter
• la página anterior = the previous page

So que la anterior sounds very natural.

In Spain, escena is pronounced roughly like es-SE-na.

A few useful points:

• the e is a clear short vowel, not like the English ee
• the c before e in most of Spain is pronounced like the th in think
• so in much of Spain, escena sounds approximately like es-THE-na
• in Latin America and some parts of Spain, it is pronounced with an s sound instead

So depending on accent:

• Spain (common standard): es-THE-na
• Latin American style: es-SE-na

Both are normal in their own varieties.