Mission: Impossible III2006

(Luther is examining the microdot Ethan found on the postcard Lindsey sent him)

Luther:
It's a microdot. A microdot with nothing on it, this is unusual.

Ethan:
Lindsey wouldn't send me a blank microdot.

Luther:
I'm telling you, man, this's no image.

Ethan:
Maybe you're not looking at the right place.

Luther:
Well where the hell am I supposed to look? There's not much square footage to this thing.

Ethan:
[walking back and forth] Why would Lindsey send me a blank microdot?

Luther:
I don't know. Why would Lindsey send you anything? You were her instructor, not her handler. [Ethan turns and stares at him] Look, I don't mean to cross the line here, but was there something going on between you two? You and Lindsey?

Ethan:
Lindsey was like my little sister.

Luther:
And you've...never slept with your little sister? [Ethan stares at him again] Look brother, if I don't ask you, who would?