Some movies, such as The Godfather and Casablanca, are treasure troves of famous lines. In fact, there are so many in these movies that Abrams ignores some of them. Instead he gives us lines hardly anyone has ever repeated from movies hardly anyone has ever seen, such "Bye, Felisha" from Friday.
On the plus side, Abrams tells us how famous lines ended up in particular movies and/or how the scenes developed in which the lines were said. He tells us that the first character to say "May the force by with you" isn't even named in Star Wars. In Gone with the Wind, Clark Gable was supposed to say, "Frankly, my dear, it has become of no concern to me."
"Follow the money" from All the President's Men, is now said frequently in many contexts. As has "You had me at 'Hello'" from Jerry Maguire.
The 1989 film Field of Dreams is remembered for the line, "If you build it, he will come." I paraphrased that line in an email just the other day, demonstrating how certain movie lines have life because they can be used in a variety of situations and bring a smile to anyone who remembers where the original line came from.
Abrams doesn't make this observation, but reading his book makes me wonder whether the age of great movie lines may be coming to end. The last line he quotes is "Wakanda forever" from Black Panther, which is not exactly memorable or repeatable in other contexts. This is from 2018, or five years before his book was published. People no longer go to movie theaters to watch the same few movies as we used to. We now watch movies on television, but there are so many of them that we don't necessarily watch the same ones. For movie lines to mean something, we all have to know where they came from. Nowadays that is rarely true.

