Я записал название фильма в блокнот.

Because записал means wrote down / noted down, not just was writing or wrote in a general sense.

• писать = to write
• записать = to write something down, to make a note of it

So in this sentence, the speaker is not talking about the general activity of writing, but about recording specific information: the film title.

Also, записал is perfective, so it presents the action as completed.

In this verb, за- helps form the verb записать, which means to write down / record / note.

It is not always possible to translate Russian prefixes with one simple English word, but here the whole verb записать has the meaning of putting information into written form so you don’t forget it.

A useful pair is:

• записывать = imperfective, to be writing down / to write down regularly
• записать = perfective, to write down successfully / to finish writing down

So:

• Я записывал название фильма. = I was writing down the film title / I used to write down film titles.
• Я записал название фильма. = I wrote down the film title.

Because the past tense in Russian agrees with the gender of the subject.

• Я записал = I wrote down — said by a male
• Я записала = I wrote down — said by a female

So the form записал tells you that the speaker is masculine.

Yes, Russian often omits subject pronouns when they are clear from the verb form or the context.

So both are possible:

• Я записал название фильма в блокнот.
• Записал название фильма в блокнот.

Including Я can make the sentence a bit more explicit, contrastive, or natural depending on context. English usually needs I, but Russian often does not.

Because название is the direct object here, and it is a neuter singular inanimate noun.

The verb записал answers the question what did I write down? → название фильма

For many neuter inanimate nouns, the accusative singular looks the same as the nominative singular:

• nominative: название
• accusative: название

So the form does not change.

Because фильма is in the genitive singular.

The phrase название фильма means the title of the film. In Russian, when one noun describes another in this of relationship, the second noun is often put in the genitive:

• название фильма = title of the film
• страница книги = page of the book
• цвет машины = color of the car

So:

• название = title
• фильма = of the film

Because after в, Russian can use either:

• accusative for direction/result
• prepositional for location

Here, в блокнот uses the accusative and suggests putting the information into the notebook, as a result of writing it down.

Compare:

• Я записал название фильма в блокнот. = I wrote the film title down in/into my notebook.
• Название фильма было в блокноте. = The film title was in the notebook.

This is a very common Russian pattern:

• писать в тетрадь
• записать в блокнот
• внести в список

The idea is not just location, but entering something into that written space.

Yes. After в with the meaning of into, блокнот is accusative singular.

For this masculine inanimate noun, the accusative singular looks the same as the nominative singular:

• nominative: блокнот
• accusative: блокнот

So the form does not visibly change, but grammatically it is still accusative.

Yes. Russian word order is more flexible than English word order.

The basic sentence is:

• Я записал название фильма в блокнот.

But depending on emphasis, you could also hear:

• Название фильма я записал в блокнот.
• В блокнот я записал название фильма.
• Я в блокнот записал название фильма.

These versions all mean roughly the same thing, but the focus changes.

For example:

• Название фильма я записал в блокнот emphasizes the film title
• В блокнот я записал название фильма emphasizes where I wrote it

English usually relies more on fixed word order; Russian often uses word order to show emphasis or information structure.

Yes.

• в мой блокнот = into my notebook
• в блокнотик = into a little notebook / notepad

Russian often omits possessives like my when they are obvious from context, so в блокнот is perfectly natural.

The diminutive блокнотик sounds smaller, more personal, or more affectionate.

So all of these can work depending on tone and context.

Russian has no articles, so there is no word corresponding directly to a or the.

That means название фильма can mean:

• the title of the film
• sometimes, depending on context, a film title

Usually the context tells you whether something is definite or indefinite.

So Russian does not need a separate word for the in this sentence.

The normal stress is:

• Я записа́л назва́ние фи́льма в блокно́т.

Stress matters in Russian pronunciation, so it is useful to learn words together with stress:

• записа́л
• назва́ние
• фи́льма
• блокно́т

Sometimes, but the meaning changes a little.

• написал usually means wrote or composed/wrote out
• записал means wrote down / noted down / recorded

In this sentence, записал is the more natural choice because the idea is making a note of the film title.

Compare:

• Я написал письмо. = I wrote a letter.
• Я записал адрес. = I wrote down the address.

So for notes, reminders, titles, phone numbers, and similar information, записал is often the better verb.