Source: NY Times.
By BEN YAGODA
As I noted in my earlier article, rules and conventions about when to use and not to use commas are legion. But certain errors keep popping up. Here are a few of them.
If I’ve seen it once, I’ve seen it a thousand times. I’m referring to a student’s writing a sentence like:
I went to see the movie, “Midnight in Paris” with my friend, Jessie.
Comma after “movie,” comma after “friend” and, sometimes, comma after “Paris” as well. None is correct — unless “Midnight in Paris” is the only movie in the world and Jessie is the writer’s only friend. Otherwise, the punctuation should be:
I went to see the movie “Midnight in Paris” with my friend Jessie.
If that seems wrong or weird or anything short of clearly right, bear with me a minute and take a look at another correct sentence:
I went to see Woody Allen’s latest movie, “Midnight in Paris,” with my oldest friend, Jessie.
You need a comma after “movie” because this and only this is Mr. Allen’s newest movie in theaters, and before “Jessie” because she and only she is the writer’s oldest friend.
Note from editor : This is a great article on punctuation. I had to read it a few times to refresh my grammar skills.