Der Film ist witzig.

Der is the masculine nominative form of the in German.

In Der Film ist witzig, Film is a masculine noun, and it is the subject of the sentence, so German uses der.

A quick comparison:

• der = masculine nominative
• die = feminine nominative
• das = neuter nominative

So der Film means the film.

Because Film is grammatically masculine in German.

In German, every noun has a grammatical gender:

• masculine
• feminine
• neuter

These genders do not always match natural gender or make logical sense to English speakers, so they usually just have to be learned together with the noun.

It is best to learn nouns with their article:

• der Film
• not just Film

Ist is the he/she/it form of the verb sein, which means to be.

So:

• ich bin = I am
• du bist = you are
• er/sie/es ist = he/she/it is

Since der Film is a singular third-person subject, German uses ist:

• Der Film ist ... = The film is ...

German main clauses usually follow the verb-second rule. This means the conjugated verb comes in the second position.

In this sentence:

• Der Film = first element
• ist = second element
• witzig = the rest

So:

• Der Film ist witzig.

This is very normal German word order for a simple statement.

Because witzig comes after ist and is being used as a predicate adjective.

In German, adjectives used after verbs like sein usually do not take endings.

So you say:

• Der Film ist witzig.
• Die Komödie ist witzig.
• Das Buch ist witzig.

Notice that witzig stays the same.

But when an adjective comes directly before a noun, it usually does take an ending:

• ein witziger Film = a funny film

Witzig is an adjective. It describes a quality of the noun.

Here it describes der Film, so it tells you what the film is like.

Common translations of witzig include:

• funny
• witty
• amusing

Depending on context, witzig can sometimes suggest something is clever or witty, not just laugh-out-loud funny.

They are similar, but not always exactly the same.

• lustig often means funny or amusing
• witzig can also mean funny, but often with a sense of being witty, clever, or full of jokes

In many everyday situations, they can overlap:

• Der Film ist lustig.
• Der Film ist witzig.

Both can mean The film is funny, but witzig may sound a bit more like the humor is clever or sharp.

Because all nouns are capitalized in German.

So:

• der Film
• das Buch
• die Stadt

This is one of the most noticeable spelling differences between German and English.

Adjectives and verbs, however, are usually not capitalized unless they begin a sentence:

• Der Film ist witzig.

A rough English-friendly guide is:

• VIT-tsikh or VIT-tsig, depending on accent

A few pronunciation notes:

• w in German sounds like English v
• tz is pronounced like the ts in cats
• the final g in words like witzig is often pronounced softly, somewhat like ich in standard German speech

So witzig does not start with an English w sound.

Yes. Dieser Film ist witzig means This film is funny.

Compare:

• Der Film ist witzig. = The film is funny.
• Dieser Film ist witzig. = This film is funny.

So der is just the normal definite article, while dieser is a demonstrative word meaning this.

You would usually use nicht:

• Der Film ist nicht witzig. = The film is not funny.

Here, nicht goes before the adjective witzig.

So the pattern is:

• Der Film ist witzig.
• Der Film ist nicht witzig.

In a yes/no question, German usually puts the conjugated verb first:

• Ist der Film witzig? = Is the film funny?

So the statement:

• Der Film ist witzig.

becomes the question:

• Ist der Film witzig?

This verb-first pattern is very common in German yes/no questions.