אם יהיה זמן, נראה את הסרט עוד פעם.

Because Hebrew usually uses the future tense in both parts of a real future condition:

• אם יהיה זמן = if there will be time
• נראה את הסרט עוד פעם = we will see the movie again

This is different from English, where we normally say If we have time, we’ll see the movie again, using present tense after if.

So this is a very common Hebrew pattern:

• אם + future, future

For example:

• אם ירד גשם, נישאר בבית.
  If it rains, we’ll stay home.

אם means if.

It introduces a condition:

• אם יהיה זמן = if there is / will be time

It is one of the most basic words for making conditional sentences in Hebrew.

Because יהיה is future tense, while יש refers to present existence.

• יש זמן = there is time / we have time
• יהיה זמן = there will be time / if there ends up being time

In this sentence, the speaker is talking about a future possibility, so יהיה is the natural choice.

יהיה is the 3rd person masculine singular future form of להיות (to be).

Here it means will be.

So:

• יהיה זמן literally means time will be
• more natural English: there will be time

Hebrew often uses this kind of structure without a separate word for there.

Because Hebrew verbs already show the subject.

נראה here means we will see or we will watch.

So Hebrew does not need to say אנחנו unless the speaker wants emphasis or contrast.

Compare:

• נראה את הסרט = we’ll see the movie
• אנחנו נראה את הסרט = we will see the movie / we will see the movie

Both are grammatical, but the version without אנחנו is very normal.

נראה is the 1st person plural future form of the verb לראות (to see).

So:

• אני אראה = I will see
• אנחנו נראה = we will see

In this sentence, it means we’ll see/watch.

It can mean both, depending on context.

With a movie, לראות סרט usually means:

• to see a movie
• to watch a movie

So נראה את הסרט can be understood as we’ll see the movie or we’ll watch the movie.

את is the marker of a definite direct object.

It comes before a direct object that is definite, such as:

• a noun with ה־ (the)
• a name
• a pronoun

So:

• את הסרט = the movie (as a direct object)

It usually is not translated into English.

Compare:

• ראינו סרט = we saw a movie
• ראינו את הסרט = we saw the movie

Because הסרט means the movie, while סרט means a movie or just movie.

The prefix ה־ is the Hebrew definite article, equivalent to English the.

So:

• סרט = movie / a movie
• הסרט = the movie

Since the sentence refers to a specific movie, it uses הסרט.

עוד פעם means again or one more time.

Literally:

• עוד = more / another
• פעם = time / occasion

So עוד פעם is literally something like one more time.

In this sentence:

• נראה את הסרט עוד פעם = we’ll see the movie again

Yes. שוב also means again.

So these are both natural:

• נראה את הסרט עוד פעם
• נראה את הסרט שוב

Very roughly:

• עוד פעם can feel a bit more conversational, like one more time
• שוב is a very common single-word equivalent of again

In many contexts, they are interchangeable.

This is a normal Hebrew word order for a conditional sentence:

• condition first: אם יהיה זמן
• result second: נראה את הסרט עוד פעם

It is similar to English:

• If there’s time, we’ll see the movie again.

You can also reverse the order in Hebrew, just as in English:

• נראה את הסרט עוד פעם אם יהיה זמן.

Both are natural.

Only partly.

• יהיה is grammatically masculine singular, but here it goes with time in an impersonal expression, so it does not tell you much about a person’s gender.
• נראה means we will see, and this does not distinguish masculine and feminine in the 1st person plural.

So the sentence does not tell you whether the speakers are male, female, or mixed.

It is completely natural and neutral.

• אם יהיה זמן is standard Hebrew
• נראה את הסרט is standard Hebrew
• עוד פעם is common and conversational, but not incorrect or slangy

So the whole sentence sounds like normal everyday Hebrew.