Carrie Fisher audition tape for Star Wars

These are interesting.  These screen tests use scripts not used in the movie. ...

Harrison ford:  http://www.youtube.com/watch?v=CH7FsX4rqI8&feature=related

Carrie Fischer:  http://www.youtube.com/watch?v=kCXrGuLix7M&feature=related

Also Mark Hamill:  http://www.youtube.com/watch?v=lSjP2GBTr9U&feature=related

Kurt Russel?   http://www.youtube.com/watch?v=nix_PID3oiA&feature=related