Context: This was not posed as a joke, but asked in the middle of a lull in conversation. The tone of the ‘joke’ is meant to be given seriously, as if recalling a news story they had seen earlier in the day.
M.Z. : Did you hear about that actress that got stabbed? Uhh, what’s her name? Reese something. From Legally Blonde, you know who I mean? Reese—
P.Z. : Witherspoon?
M.Z. : No, with a knife.
Thoughts: The first time that I heard this joke, I was caught off guard. While it is a cringe-worthy pun, I thought that this was one of the more creative jokes that I have been told.