- Have you ever heard of the word tumulus?
- Tumulus. No, I haven't. Sorry.
- Neither have I.

9 seconds sound clip from the WarGames (1983) movie soundboard.

You can hear this line at 00:36:13 in the Blu-ray version of the movie.

Quote context

[...]

- Go right through Falken's Maze.

- Hi! I'm Jennifer.

- Is David here?

- How do you do?

- Yeah. He's up in his room.

- Have you ever heard of the word tumulus?

- Tumulus. No, I haven't. Sorry.

- Neither have I.

(Knocking on door) Yeah.

- Hi! Where have you been?

- What? (3)

- I haven't seen you in school. Are you sick?

[...]