Mary Kate and Ashley Olsen have an uncredited cameo as replacement Angels. They appear in the scene where Drew Barrymore is imagining herself with replacement Angels. First Eve then Mary-Kate and Ashley.

None of the Angels carry or use guns in this sequel because actress Drew Barrymore is a known gun control advocate.

In the credits at the end of the film, watch through the out-takes until it comes to the one of Lucy Liu saying, "I think we should get to the lab and analyse it right away." Look at the credits at the right hand side. The second paragraph says- Madison's Minions: Russel Bobbit, Charles Townsend and Al Kahn. Charles Townsend one of Madison Lee's minions? Looks like Charlies swapped sides on the angels.

Notice the name of the high school on the envelope that contains Pete's reunion invitation; it reads "Rydell High", an obvious Grease reference.

When Demi Moore shoots the speaker box, the portraits seen behind her are of previous Angels from the TV series.

The orphanage scene was filmed at the Playboy Mansion. No wonder some children are caught reading that magazine.

The song that is playing while angels are going into the crime scene is The Who's "Who Are You," which is also the theme song for the TV show "CSI: Crime Scene Investigation."

Lucy Liu's house also appears in The Big Lebowski as the porn man's home.

The actress who plays Kelly Garrett is one of the original Angels from the television series, Jaclyn Smith.

O'Grady's release from prison is an homage to Cape Fear, right down to the music.