Skyline

Walt's mustache vanishes then reappears between shots right before he gets taken.

Elaine goes from wearing shorts to pants in the condo right after Walt is taken.

Jarrod's hair changes lengths when walking down the hallway before meeting Walt.

A TV is shown with an Emergency Broadcast System alert.

The EBS was replaced by the Emergency Alert System in 1997.

During the nighttime aerial shots of the grounded fireballs, the intense glare should have illuminated the surrounding environment, yet no light was cast on buildings, streets, cars, etc.

Right after the aliens land, Terry walks toward the window and his Superman tattoo is visible on his right upper arm.

However, in a previous scene, when he is walking to the swimming pool bar, the tattoo does not exist.

When the large alien crushes the Ferrari that Terry and Denise are in, the alien crushes the passenger side, presumably killing Denise.

However, shots of the car just before it's crushed and afterward show that the top of the passenger side is empty.

Even when the car is lifted up and the destroyed passenger side is fully visible, there is no remaining trace of Denise when there would be.

When Terry pulls back the blinds and says "There's something down there," the camera cuts to a foggy street.

One of the giant aliens is visible for about 2 seconds, but the aliens don't actually arrive until later in the movie.

As Jarrod and Elaine walk into the apartment for the first time in the movie, the camera is briefly reflected in one of the drink glasses on the counter top.

The color of Elaine's pants change after Jarrod and Terry leave the apartment.

Evidence of this is seen when Terry comes back from Walt's apartment.

During the after-party scene in Terry's apartment, the camera rig and the recording light is reflected in the glass of the windows.

Towards the end during an aerial shot looking down, the camera passes over a building and you can see the chiller fans of the A/C turning.

Yet earlier in the flat the water is off, so the A/C should also be off.

Candice's hair changes from being loose when she lies down on the couch to being tied up when she wakes to the sound of the air strike.