Learn Hardcore Russian: Это захватывающий фильм.

Это is a demonstrative pronoun that translates as “this is” in this context. It introduces the statement by identifying what is being talked about—in this case, the film.

Why is there no explicit verb meaning “is” in the sentence?

In Russian, the present tense of the verb to be (есть) is usually omitted. The sentence Это захватывающий фильм implicitly means “This is an exciting film” without stating есть.

How does the adjective захватывающий agree with the noun фильм?

The adjective захватывающий is in the nominative singular masculine form, matching the noun фильм, which is a masculine singular noun. This agreement in gender, number, and case is essential in Russian.

Why is Это used instead of a demonstrative adjective like этот?

Это functions as a neuter pronoun used to introduce or identify something, effectively meaning “this is.” When directly modifying a noun, you would use этот (as in этот фильм for “this film”). In this sentence, however, the structure is set up as a declaration—“This is an exciting film”—so это is appropriate.

Can захватывающий change form in other contexts, and if so, how?

Yes, Russian adjectives change their endings to agree with the gender, number, and case of the noun they describe. For example, if the noun were feminine, the adjective would change to захватывающая; if neuter, to захватывающее; and in the plural it would be захватывающие. This flexibility ensures that adjectives properly match the nouns they modify in any sentence.