Dialogue is the common tag for tracks of famous lines/exchanges in movie soundtracks.

There are also multiple artists named Dialogue:

1) Dialogue is a minimal house project created by Swiss duo Stefan Riesen and Niels Jensen. Riesen (founder-manager of Phont Music, SuperBra, Morris Audio, Speaker Attack) joined forces with local young talent Jensen and released several 12"'s on labels like Lo-Fi Stereo, Highgrade, Stattmusik and Morris Audio.

http://www.discogs.com/artist/Dialogue
http://www.thinner.cc/artists.php?id=15

2) Dialogue was a 70s pop rock duo from Philadelphia, USA.

3) Dialogue is a Christian rap group.

4) Dialogue is the solo name of a Korean underground rapper from the group Rimshot.

5) Dialogue is a Drum & Bass DJ from Birmingham, England.

6) Dialogue is an emo rock quartet from Saint Louis, Missouri. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.