Pros I rented this as opposed to seeing the Day the Earth Stood Still, as someone said Keanu was terrible. But, I think it's a toss-up between the two movies.
Cons For adults, you will wonder why you just wasted 2 hours watching it. It will make you laugh at the ludicrous situation, terrible acting, and the implausible tactics they use. If that is all you want in a movie, then watch it with your kids.