1. The acting of the lead actor was great.

2. The main actor's acting was terrific.

3. The actings of some actors and actresses were fantastic.

4. Two main actors' actings were outstanding.

5. The scenery around the ship was very nice.

6. When the ship was sinking, the actings of the people on the ship were realistic.

7. The movie used special effects, so it was great to see the sinking ship.

(Would you check the sentences and correct errors please?)

#s 4 and 6 -- There is no such word as "actings" -- use "performances" in #4 and "actors' performances" in #6.

Everything else is fine.

Same applies to #3. Use "acting."

And that changes the be verb. Since acting is a non-countable, it takes the singular form, "was."

(Sorry for the double post).

You're a cheater

STOP THIS OR YOU'RE GONNA WORK AT MCDONALDS OR LIVE ON THE STREET!
YOU THINK I AM KIDDING
LISTEN NOW
OR
FACE
IT!
YOU WILL NOT BE HAPPY
YOU WILL NOT BE SUCESSFUL
STOP CHEATING
OR
FACE
THE
CONSEQUENCE!

1. The acting of the lead actor was great.

This sentence is grammatically correct and does not require any corrections.

2. The main actor's acting was terrific.

This sentence is grammatically correct and does not require any corrections.

3. The actings of some actors and actresses were fantastic.

In English, the word "acting" is usually used as an uncountable noun, so it is not typically used in the plural form "actings." Instead, you can say "The performances of some actors and actresses were fantastic."

4. Two main actors' actings were outstanding.

Similar to the previous correction, it would be more natural to say "The performances of the two main actors were outstanding."

5. The scenery around the ship was very nice.

This sentence is grammatically correct and does not require any corrections.

6. When the ship was sinking, the actings of the people on the ship were realistic.

Similar to the previous corrections, the word "actings" should be replaced with "performances" to say "When the ship was sinking, the performances of the people on the ship were realistic."

7. The movie used special effects, so it was great to see the sinking ship.

This sentence is grammatically correct and does not require any corrections.