Olivia has performed predominantly on stage and in theatre so does not have a lot of video footage of her work.
However here are some self tapes of Olivia:
Scene taken from Netflix series: The 100 – Nevermore – Jason Rothenberg
Scene taken from “Practical Magic” – Warner Brothers Pictures 1998 – WITH U.S. Accent
“What Country Friends Is This?” trailer
“In Like Flynn” trailer
See Olivias’ full list of credits here