Discussing her work, Hiller said few actors could be so versatile that they become entirely different people, and that most essentially play versions of themselves or, as she put it, they operate on the same base energy sphere. She said some, like Sean Penn, could expand the perameters widely.
As an example, she said that Kevin Spacey is not particularly warm and would be unlikely to be cast in an avuncular role.
To an audience including a high proportion of actors and filmmakers, Hiller said that actors should take comfort from the fact that there are many variables that come into play before acting talent becomes a deciding factor in whether or not an actor got a particular part. Acting talent, she said, may only account for 7% of the reason a particular actor would be cast in a role, citing other factors ranging from age and ethnicity to box office value in China.