Biggest cringe moment?

Goldblum's character screaming in fear when they were headed for the moon and the fusion drives were activated

HELLO

Definitely all scenes in the desert starting from: hey there is skinny strange guy! - that must be David!

But I totally lost it when they entered the bus in a hurry and this huge ass alien queen approaches and this dumb *beep* kid goes: wait my dog

For me the biggest cringe moment was the explanation why the aliens were drilling a hole into the earth's core. Seriously, an energy source? The earth's core consists of metals (the outer core consists of fluid nickel and iron and the inner core mostly of solid iron, solid due to the pressure). There are by far easier methods to get these elements than to extract them from the center of a planet. Also you can't use them as an energy source except for the relatively small ammount of energy you'll get from the heat, and even this heat can be retreived by far easier (after all, suns are pretty hot). It's simply not worth flying through the galaxy for this. Also the extraction would be nearly impossible, because the fluid iron/nickel mix would become solid pretty fast on the surface of the earth, closing the hole the aliens just drilled.

Second must have been the "We've come a long way" speech Ex-Prez Whitmore gives to David Levinson and the ground crews and pilots. Just bad. Like, 93% or so of the whole air force have just been killed, the attack was a bloody desaster, but yea, this speech will give them all their strength back and will make them fight on.

I can accept the alien queen's personal shield collapsing to the attacks of the fighters and their relatively weak weapons despide the fact that the same shield just survived the detonations of multiple fusion bombs, maybe those fusion bombs weakened the shield just enough so that the fighters could punch through.

Every frikkin' thing anybody says in this affront of a movie is such a godawful cliche. Any time somebody opens their mouth there's a Hollywood oneliner coming out. Maddening. Infuriating! The whole movie is an onslaught of insults to the intelligence of the viewer. I've read through the comments and I am thankful for all the people pointing out the horrible moments. I'm having a difficult time. I just wanted to write something on IMDB but I am at a loss for words. I need to write something right now for therapeutic purposes. To give words. This deep wound to my soul.

. . .

The ship's gravity pulling cities off of the ground?! No nvm... I'm not gonna start pointing out the scientific inconsistencies. They're too many, the movie is riddled with 'em. And then there's the alien technology.
Gotta be really great stuff if it's better at holding up a giant TV-screen than just a regular (or even mobile)
beam construction.

The way brawny thoughtless insubordination is always heroified... The way people cheer for launching fighter pilots like "Bye bye! Have a nice death! Byeee!" But hey! The way people seem to be ready to stack personal sacrifice upon sacrifice. The way the whole world sits on the edge of their seats when the POTUS is addressing the peoples of the Earth. While in fact his speech was mighty thin on actual information and full of things most people outside the US will not relate to. The way the audience is being primed for their future female president. I see this a lot in American movies b.t.w. This priming and drip-feeding. Leader of the free world? Seriously? Sometimes it looks like their whole society's been preordained.

. . .

Alien as aliens may be they still build airports the way we do, with runways and control towers etc.
No! It's enough. I'm done. It's over. I needed to know. Now I know.

When Dylan (Jessie Usher) hits on Rain (Angelababy). He's obviously hitting on an older woman way out of his league. Hollywood likes to show AF as easy and how any WM can hit on Asian women and see success no matter how terrible/unsuitable the guy is.

When Patricia came out in her flight suit. Awful idea.

(Go to a review board if you don't want spoilers. This is a DISCUSSION board.)

Basically any scene involving the US president. She was pretty awful.

Get on the scale son! Get off the scale.

The talking ball.