Questions: Omar rattled off a list of his favorite filmmakers: David Lynch, Christopher Guest, the Coen Brothers, Quentin Tarantino, and Wes Anderson.

The answer is: Omar rattled off a list of his favorite filmmakers: David Lynch, Christopher Guest, the Coen Brothers, Quentin Tarantino, and Wes Anderson.

Explanation: In this sentence, a colon is the appropriate punctuation mark to use after "filmmakers" because it introduces a list. Here’s a breakdown of why the other punctuation marks are not suitable:

1. Comma: A comma is used to separate items within a list, but it is not used to introduce a list.
2. Semicolon: A semicolon is used to separate items in a list when the items themselves contain commas, or to link closely related independent clauses. In this case, the items in the list do not contain commas, so a semicolon is not appropriate.

Therefore, the correct punctuation to use is a colon.