I'm currently searching for a sci-fi movie, which i saw a trailer of on TV some years ago. If my remembrance is right, it was an alien invasion movie. What i remember:
A woman on a screen saying something like: ''dont do anything against us'' blabla.
Skyscrapers with a BIG and VERY SILVERY SHINING space ship hovering over them, the space ship also has a big screen on the bottom of it, showing this woman talking to the earths population.