Esposito: Look at him all excited!
Beckett: Yeah, like a kid at Christmas.
Ryan: With a dead body under the tree...

Castle: Now we're even. So what do you say to, ahhh, a little showdown? Head to head. Toe to toe. Winner take all. Mano y Muher?
Beckett: Hand to woman?
Castle: Whatever it takes.
Beckett: You're on!

Beckett: What are we playing for?
Castle: Pride. (looks down suggestively)... or clothing.
Beckett: I think I got a bag of gummi bears.

Castle: Look who's stalking...

Look Who's Talking was a popular run of three movies released 1989-1993 which presented the world from the point of view of those unable to talk. The central characters were an unwed mother (played by Kirstie Alley), a cabbie who helps her and falls in love(John Travolta), and the child she has, voiced from sperm to toddlerhood with aplomb and sharp wit by Bruce Willis. In the first sequel, a younger sister was added, voiced by Rosanne Barr. The third sequel devolved to pets, and lacked either Willis or Barr's voice talents.