Officer Ryan: You think you know who you are? [Officer Hanson nods] Officer Ryan: You have no idea.
CrashHarry: Now what? Hermione: We save Sirius. Harry: How? Hermione: No idea.
Harry Potter and the Prisoner of AzkabanDr. Ian Malcolm: [about Ellie] She's, uh... tenacious. Dr. Alan Grant: You have no idea.
Jurassic Park