Directed by: Jay Roach
Starring: Robert De Niro, Owen Wilson, Ben Stiller, Blythe Danner, Teri Polo
Revealing mistake: At the airport when Jack says 'tow it', there is an extra waiting for his mark to walk outside seen in the reflection of the doors.
Revealing mistake: At the part where the two are racing back to the house. At the very last light when the father turns left, you can see that the driver of the Mercedes is a stunt double.
Visible crew/equipment: When Jack (De Niro) enters the airport door to keep Greg (Stiller) from leaving for home, you can see the reflection of the camera in the glass door and then it backs up as DeNiro walks in.
Pam Byrnes: You never told me about your cat milking days in Motown.
Trivia: Originally, the film was meant to be a vehicle for Jim Carrey. Among his contributions was Greg's surname, "Focker." Eventually, Carrey left the production, and Ben Stiller took the part.
Answer: Greg was probably surprised at just how "richy" they really are. Because lacrosse camp seems like a really rich, preppy thing to do. But mainly, I think he was suprised because he did not know that his girlfriend's ex and his girlfriend's sister's fiance knew each other. He didn't realize how connected they all were.