1. Don't make a noise at the movies.

2. Don't talk out loud at the movie.
3. Don't talk to others in the movies.
4. Don't talk aloud in the movie.
5. Don't have a conversation loudly in the movie theater.
6. Don't disturb others in the cinema.
7. Don't laugh in a cinema.
8. Don't fight with others in a movie theater.
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Which expressions are grammatical or ungrammatical?
Would you check them? Thank you.

1 and 2 are fine.

3 and 4 are odd, unless "you" are IN the movie (that is, have a role in the movie).

The rest are fine.

To determine whether the given expressions are grammatical or ungrammatical, we can analyze each sentence individually. Here's an evaluation of each expression:

1. "Don't make a noise at the movies." - Grammatical. This sentence is well-constructed and conveys the intended meaning.

2. "Don't talk out loud at the movie." - Ungrammatical. The phrase "at the movie" should be changed to "in the movie theater" to correctly indicate the location where talking out loud is prohibited.

3. "Don't talk to others in the movies." - Grammatical. This sentence is grammatically correct and accurately expresses that talking to others within the movie theater is not allowed.

4. "Don't talk aloud in the movie." - Ungrammatical. Similar to the previous example, "in the movie" should be revised to "in the movie theater" to reflect the correct location.

5. "Don't have a conversation loudly in the movie theater." - Grammatical. This sentence is well-formed and clearly expresses the idea of refraining from having loud conversations within the movie theater.

6. "Don't disturb others in the cinema." - Grammatical. This sentence is correct, suggesting that one should not disrupt or bother others in the cinema.

7. "Don't laugh in a cinema." - Grammatical. This sentence is valid, conveying the message that laughing should be avoided or kept to a minimum while watching a movie in a cinema.

8. "Don't fight with others in a movie theater." - Grammatical. This sentence is properly constructed and delivers the intended meaning that engaging in fights or altercations with others inside a movie theater is discouraged.

Please note that while I have evaluated the grammaticality of these expressions, it's always best to consider the context of their usage and adhere to any specific guidelines or rules provided by the movie theater.