When Louis questions Donna on the stand, her hairstyle changes between shots.
Harvey says to Zoe, "Mrs. Robinson, are you trying to seduce me?"
Zoe says, "I'm younger than Anne Bancroft," presumably meaning Anne Bancroft in The Graduate, not Anne Bancroft who was already deceased in 2012.
Harvey was born in 1972, so he is 39 or 40 in this episode.
Given her professional status, we can infer that Zoe is roughly Harvey's contemporary.
And by happy coincidence, this episode aired on Jacinda Barrett's 40th birthday.
Anne Bancroft was 36 when she filmed The Graduate.
It cannot be said for certain, but it is very unlikely that fictional Zoe Lawford in Sucker Punch is younger than real-life Anne Bancroft in the Graduate.
She may be just about exactly the same age as the fictional Mrs. Robinson, who may have gotten pregnant with 19-year-old Elaine while still in college.
In the bathroom confrontation between Louis and Harvey, Rick Hoffman who plays Lewis, when exiting the scene, backs into the camera making it wobble. You can see the image shake in the close up of Harvey.