[timotheeeee]

This is a great topic, btw.

Any alien invasion flick in which the light-years-beyond-humans-in-intelligence-and-technology invaders are defeated due to some basic element on earth that is fatally poisonous/acidic to the aliens. It's not exactly difficult to see that the place you're about to invade is 3/4 covered with water. It's kind of like if the US decided to infiltrate a forest for an attack on some tribe, but didn't find out until they were in the middle of the forrest that it wasn't a forest, but a bunch of really big vampire-dinosaurs.

Although I like the movie, the entirety of the Sixth Sense, where Bruce Willis goes through life and doesn't realize he's only acknowledged by one person (hell, he was in the kid's house sitting across from the mother; did he not realize he floated through the front door and sat down across from her?) until the kids tells him he's dead, kind of gets on my nerves.

Although not an incongruity in the classical sense, the scene in Independence Day where Randy Quaid has two 'going away/f-off, aliens' lines is ridiculous. I think it's first "In the words of my generation, UP YOURS!" and you think he's gone and sacrificed himself, then they cut to another scene, then cut back to Randy again, saying "Hello boys, I'm BAAAAACK." It's kind of incongruous, but definitely dumb/annoy/extraneous.

Any movie where a force to be reckoned with is subdued and/or killed with contrived ease. I could name a bunch but I'll just mention Return of the Jedi: the powerful Sith lord is defeated by an injured, newly one-handed James Earl Jones picking him up and throwing him down a hole. They're supposed to see that crap coming!

In Batman Begins, I don't see the point of Batman giving control of the success/failure of the crucial mission of taking down the train rail to some guy that knows nothing about the Batmobile, then going onto the train to basically do nothing. Gambling with the old man accomplishing that task instead of using his own expertise is definitely -EV, and going onto the doomed train to, I guess, say goodbye, can never be +EV.