Is this correct:

"the factors that contributed to the movie's comedy"

im terrible when it comes to grammar.

"the factors that contributed to the movie's comedy"

This is not a complete sentence. As phrases that could be included in a complete sentence, it's OK.

??

Here are some ideas to make it a complete sentence if you need to do that:

These are the factors that contributed to the movie's comedy: _and then go on to list them)_.

Many factors that contributed to the movie's comedy are _and then go on to list them)_.

Many factors contribute to the movie's comedy, such as _and then go on to list them)_.

Many factors contribute to the movie's comedy. (not the greatest, but grammatically correct)

=)

Yes, you are correct that "the factors that contributed to the movie's comedy" is not a complete sentence. It is a sentence fragment, which means it does not convey a complete thought on its own.

To make it a complete sentence, you can add a subject and a predicate. For example:

- "These are the factors that contributed to the movie's comedy."
- "Many factors that contributed to the movie's comedy are..."
- "Many factors contribute to the movie's comedy, such as..."
- "Many factors contribute to the movie's comedy."

By adding a subject and a predicate, you create a complete sentence that can stand alone and convey a clear meaning.