Taken from:
http://sensesofcinema.com/2002/david-lynch-and-mulholland-drive/mulholland_amnesia/
"This Is The Girl"
"Following a show-stopping performance for a film project unworthy of her talent, Betty is given the chance to audition for the coveted role of “the girl” in Adam Kesher’s (Justin Theroux) new movie, but she passes it up to keep a date with Rita."
"In an imagined flashback to Diane’s first encounter with Adam, the lingering glance between Betty and the director, whose audition she departs to meet Rita, hints at both recognition and attraction. (2:18-2:38). But the suggestion is left unresolved: Betty rushes from the scene just as “the girl” – Camilla Rhodes’s blonde double – is auditioning for the part. This timed coincidence juxtaposes the visual spectacle of Betty’s sacrificial act against the auditory background of the blonde’s lyrics, which portentously sing of Camilla’s sexual callousness: “friends ask me, am I in love? I always answer yes.” The parting glance between Betty and Adam suggests that if she had put her own interests first, Diane could have become “the girl” – she could have become Camilla Rhodes."
