In terms of acting , Peter Lennon , writing for The Guardian in 1999 , identified Garland as a `` chameleon '' .
In terms of acting , Peter Lennon , writing for The Guardian in 1999 , identified Garland as a `` chameleon '' due to her ability to alternate between comedic , musical and dramatic roles , citing The Wizard of Oz , The Clock , A Star is Born and I Could Go On Singing – her final film role – as prominent examples .
Judy Garland