Austin Powers International Man of Mystery Vanessa: That's you in a nutshell.
Austin: No, this is me in a nutshell. [acts as if he were in a nutshell] "Help! I'm in a nutshell! How did I get into this bloody great big nutshell?! What kind of shell has a nut like this?!"

Shantaram by David Gregory Roberts Anything that can be put in a nutshell should remain there.

Hamlet by William Shakespeare I could be bounded in a nutshell, and count myself a king of infinite space, were it not that I have bad dreams.

Mad Men Dr. Faye Miller: In a nutshell, it all comes down to what I want versus what's expected of me.

William Somerset Maugham I'll give you my opinion of the human race in a nutshell... their heart's in the right place, but their head is a thoroughly inefficient organ.

Cheers Cliff: Well that Paul, is the history of Western Civilization in a nutshell. You were right to come to me.
Paul: I didn't come to you, Cliff. I was waiting to use the phone.

It Happened One Night [to Ellie] Now that's my whole plot in a nutshell. A simple story for simple people. If you behave yourself, I'll see that you get to King Westley. If not, I'll just have to spill the beans to Papa.

Kitchen Nightmares Gordon: A restaurant run by three passionate owners? No chance. Brian, he works two days a week. David, well I don't trust him one little inch. And as for Greg, well he's pissed off at both of them. Basically in a nutshell, Sleepy, Dopey and Grumpy. Who am I? Snow (bleep) White?

Walden by Henry David Thoreau Let us spend one day as deliberately as Nature, and not be thrown off the track by every nutshell and mosquito's wing that falls on the rails. Let us rise early and fast, or break fast, gently and without perturbation; let company come and let company go, let the bells ring and the children cry -- determined to make a day of it.

The Hitchhiker's Guide to the Galaxy by Douglas Adams "This Arthur Dent," comes the cry from the furthest reaches of the galaxy, and has even now been found inscribed on a mysterious deep space probe thought to originate from an alien galaxy at a distance too hideous to contemplate, "what is he, man or mouse? Is he interested in nothing more than tea and the wider issues of life? Has he no spirit? has he no passion? Does he not, to put it in a nutshell, fuck?"
Those who wish to know should read on. Others may wish to skip on to the last chapter which is a good bit and has Marvin in it.