Given the synopsis of this movie, you know that you are going to be in for a low budget version of disaster movies already done before with bigger budgets and a more impressive cast list.
And the very first thing that pops up on the screen is in itself a warning sign enough to behold, The Asylum. Yep, a movie such as this is, of course, a movie by The Asylum. So why keep watching it? Well, every now and then The Asylum do manage to strike gold and release something that is impressive and surprisingly good. "Asteroid vs. Earth" wasn't one of those moments, however.
A massive asteroid is on a collision course with Earth, and it is up to the American military to save the world, of course. And how do they plan to do this? Well, first of all by attempting to scatter the meteor into fragments by blowing it up with nuclear warheads out in space (yep, that has been seen and done before countless times). And if that plan is to fail, the failsafe plan is to detonate nuclear warheads in a deep oceanic trench to, and I kid you not, move the entire Earth out of the trajectory of the meteor. Move the Earth, are you kidding me? I guess that puts a whole new meaning to the song "I feel the Earth move".
The storyline in "Asteroid vs. Earth" is just so preposterous and out there that it doesn't pass as being believable for even the slightest of moments. And you just sit there throughout the entire movie baffled at the ludicrous imagination going on here.
I sat down to watch this movie simply because of Tia Carrere, and she actually do manage to make the movie watchable. The rest of the movie barely scrapes by as being mildly entertaining at best.
The effects in the movie is nothing to make notice of. It wasn't particularly memorable. But truth be told, I have seen much worse effects and CGI in movies.
If you enjoy disaster movies, there are far better ones available.