I just :smack: myself a few days ago when I - for the first time in my life - realized just how blatantly phallic this poster is.
Sometimes a shark is just a shark.
I figured that. But I hadn’t noticed the coincidence until just this week so it counts as a belated realization of something that should have been obvious.
Maybe Don Draper has phalluses on the mind. 
What I find fascinating is how they changed the original book cover to make the movie poster:
It’s still phallic, but you can’t deny that the poster is over-the-top by comparison.
In Spaceballs, the DINKs aren’t just whistling any march. They’re whistling the Colonel Bogey March. Which is famously in Bridge Over The River Kwai, starring Alec Guinness (who of course was Obi-Wan in Star Wars)
Because it’s a crappy and not realistic shark drawing? The movie poster is a thousand times better.
What’s messed up is the “Penguin Classics” edition cover, where the lady is missing.
I was looking at some acting credits just now, and realized for the first time that Laurie Metcalf is not only Sheldon’s mother on*** Big Bang Theory***, she was also Nanny G, Frasier’s first wife on the sitcom by the same name, who got a huge laugh with “Do you have any idea what it’s like to play the same character for twenty years?!?”
Additional fun fact: Nanny G was first played by Emma Thompson on Cheers!
She was also Roseanne’s sister on Roseanne, which also featured Johnny Galecki (Leonard on The Big Bang Theory) as the boyfriend of Sara Gilbert, who was also on Big Bang for a while. That may not come as a surprise to some, but I did not know that until recently. (I was always too busy to watch Roseanne when we were in Hawaii. But the future wife really liked it, and while she was aware of the Galecki-Gilbert combo, she didn’t recognize Metcalf on Big Bang at first.)
Chuck Lorre, who created BBT, worked on Rosanne, and knew them from his time there. There’s a couple other crossovers aside from those three, IIRC, but I’m blanking on them.
Literally just found out, on the 40th anniversary of its release, that the ‘Wendy, let me in…’ line from Springsteen’s Born to Run is a direct reference to Peter Pan. (As in, Wendy let me in your window)
Can’t believe I never caught that one!
I just noticed that both Caddyshack and National Lampoon’s Vacation have scenes where Chevy Chase goes skinny-dipping with a hot blonde.
And you follow through to Dorothy: has always been home.
This probably goes more into “missed it the first time”. In the animated movie “Flushed Away.” Hugh Jackman does the voice of a “upper class” rat. In one scene the character is trying to decide what outfit to wear. One of the outfits is the Wolverine costume from the early comics.
Which is also the song whistled in “The Breakfast Club,” right before lunchtime.
Why did Joan Baez write a song about her romance and entitle it The Winds of the Old Days?
The answer, my friend…
ETA: It took me 40 years to realize this!
… just wrap your legs 'round these … silver wings.
Extremely minor.
At a client’s house (I do home healthcare) he was watching a movie and a version of the Carpenter’s “Top of the World” was playing and I realized there’s another song with some of the same music.
After a couple days of thinking about it, it hit me. In Musical Youth’s “Pass the Dutchie” the verses use the same (or very similar) music as the verses in “Top of the World”.
I never realized that before.
Musical Youth’s “Pass the Dutchie” is a cleaned-up-for-the-kiddies cover of The Mighty Diamonds’ Pass the Kouchie.
OK, I’ll rephrase. The Mighty Diamonds borrowed from “Top of the World.”