#1433: Lightsaber explain

[Luke Skywalker and Darth Vader are talking. Vader holds the handle of a powered-off lightsaber.]

Vader: I see you have constructed a new lightsaber.

[Vader turns it on. The beam of the lightsaber continues upward out of the frame.]

Lightsaber: Snap-Hisss

[Vader looks up toward where the beam is pointing.]

[Vader looks back at Luke.]

Vader: Where does it end?

Luke: Doesn’t.

Intercom (out of view): Hull breach all along sector five!!