Stating the Plot in Disbelief

[Tarantulas]

I like it when people have to explain what an object is, and how it functions rather than just use it.  Then offers an explanation to another character about what it is, only to be rebuffed with a "I know what it is!" type statement.

Is to help the terminally dumb, or just make people feel better about themselves?

[sarcasm_made_Easy]

terminally dumb im afraid

[Rufus T]

 "This ship is going to sink?!" Not an actual line from Titanic but I would've loved it if someone had said it.

[Hobbit]

"Soylent green is...people!"

Snakes on a Plane

I remember George Lucas, in audio commentaries, called some of those scenes 'pointer scenes.'  However, it only qualifies as a pointer scene (which is necessary in some movies) if it explains what the hero(es) must do to win.

[gbeenie]

"Whaddaya mean I signed a contract?"

--Kal Penn, to his agent, upon learning he really had to do Epic Movie

[the long undertow]

I like it when people have to explain what an object is, and how it functions rather than just use it.  Then offers an explanation to another character about what it is, only to be rebuffed with a "I know what it is!" type statement.

Is to help the terminally dumb, or just make people feel better about themselves?

Along with that is phrases or terms that someone in the movie doesn't know, so after it gets used the other characters explain them for benefit of the audience.

Best example I can come up with ATM is from the Matrix.

Tank: Power offline. EMP armed and ready.
Neo: EMP?
Trinity: Electromagnetic pulse. Disables any electrical system in the blast radius. It's the only weapon we have against the machines.

[Pak-Man]

Straight off of a commercial I saw today!

You mean to tell me you built a rocket ship in your BARN!?

[Thom_Serveaux]

Oh come theres NOOOOO way hollywood would dare be that predictable would it?

Joel and the bots came to the conclusion easily enough....
"...They just didn't care..." ~All #418 Attack Of The Eye Creatures