A large-scale alien invasion occurs on Earth, complete with huge motherships floating over cities and various minions scouring the lands below to capture humans. The movie's story is set specifically in Los Angeles and follows a group of people stuck in a luxurious high-rise. They watch in horror as humans are literally absorbed by the alien beings and have their brain sucked clean out to act as some sort of power device to keep the aliens running. The rest of the movie just follows this chosen group and their efforts to stay alive. With the small band of people the writers had an opportunity to create a sense of connection in our minds for them; they however simply don't seem interested to do so. The moment you walk out, you might find it difficult to even remember their faces forget their names.
The movie shamelessly pilfers plot elements & narrative structures from 'Cloverfield', 'Independence Day', 'War of the World's & even 'District 9' in creating a story that is epic in scope but presented in a glorious B-grade avatar. The script is rife with cheesy dialogues & amateurish handling of situations that its assured to make you laugh thanks to its sheer stupidity.
If you have seen the trailer and been wowed by the special effects then be prepared to expect just that; one endless VFX show reel. I do realize that the Brothers Strause are special effects gurus but a movie is never about the effects alone. Even if they had attempted placing a tried and tested; done to death plotline with half the ingenuity of the originals, Skyline might have been watchable. The way it stands currently Id only advice you to stay as far away from it as possible.
If you feel the urge to waste money, if you do not demand much from your films, if you enjoyed the Transformers (Shallow, soulless pieces of crap), I would still urge you to avoid this disaster. For the love of God and sanity, the success of this movie will only lead to another one and you don't want to be responsible for causing so much grief, please avoid.