Oh, yes, the book. We mustn't forget the book.

3 seconds sound clip from the All Through the Night (1942) movie soundboard.

You can hear this line at 01:12:59.078 in the Blu-ray version of the movie.

Quote context

[...]

- Remember that explosion in the powder plant last week, and that fire in the shipyard a month ago? This outfit's back of all that, and that antique joint's the front for the whole works.

- You take my breath away.

- Now, why don't you start your story with once upon a time...

- Stop kidding around, will you, Forbes? I'm giving it to you straight.

- It's all down in that book I was telling you about.

- Oh, yes, the book. We mustn't forget the book.

- He's right, lieutenant. You've got to believe us.

- All I want to know is who killed Joe Denning?

- A goggle-eyed little rat named Pepi, and he's the guy that got Miller, too.

- You're making a very naughty boy out of this Pepi.

- What I don't understand is, what is the connection between Joe Denning and Miller?

[...]