Remember that memorable interrogation scene on Pier 32 from The Naked Gun?

The actor who played the sleazy dock foreman is named Joe Grifasi.

The new Naked Gun has one subtle reference that doesn't point back to the original film trilogy, but much further - to the TV series that served as the blueprint for all three movies. In other words, it's a nod to Police Squad! from 1982.

In the final scene of the new film, everyone around the main characters suddenly freezes, while the protagonists themselves are confused about what's happening - yet they're still able to move:

This is a direct callback to the endings of every episode of "Police Squad!". That exact gag happened each time - for example, here's how episode two ends:

In The Fifth Element, there's a brief and easily overlooked scene in the middle of the movie where a spaceship takes off toward Fhloston Paradise. It only lasts a couple of seconds, but if you pause and take a closer look, you'll notice an interesting detail from the director.

I've numbered the key spots in the screenshot.

What we see is New York of the future. The ocean level has dropped dramatically, making the city look almost unrecognizable. The only question is - where could all the water have gone for sea levels to fall that much?

1 - The Statue of Liberty. It looks taller because of the extended base underneath.
2 - This marks the future ocean level. Somehow the ice caps didn't melt to add more water to the seas. Did humanity ship the water off to other planets?

3 - Manhattan, 4 - Brooklyn, 5 - The Brooklyn Bridge connecting them. With the water gone, the bridge is now spanning a canyon instead of a river.

And on what used to be the ocean floor, they've built a spaceport.

The two brothers from the famous Zucker-Abrahams-Zucker trio - had their mother, Charlotte Zucker, appear in a bunch of their films. Though her roles were mostly brief and cameo in nature, if you enjoy the spoof comedies of that era, you're sure to remember this elderly lady.

In the original "Airplane!", Charlotte Zucker tried to apply makeup.

"The Naked Gun: From the Files of Police Squad!": she played Dominique, the secretary for the mastermind villain.
“I must kill Papshmir.”

When you're walking around New York City, you might easily miss an interesting detail: many manhole covers say "Made in India." Here's one of them:

You might not notice it right away. I zoomed in and rotated a section of the photo so it's clearer: