Possible Clues:

• Orphan that is after old widow's stipend
• Orphan of stage and film
• Popular musical about Little Orphan
• Hit musical and film
• Heroine of Berlin and Vienna not very bothered
• Berlin's gun toter
• Cartoon-based musical
• Little Ophan .....; also a musical
• It sounds as if she might have had a lorry
• 'Bull Durham' character