This is one worth seeing on the big screen! Ron Howard is a genius, of course and if you suspend your disblief about that much anti-matter meeting matter over a city, then it's probably the best explosion you'll have seen. - Very entertaining and the woman isn't there as romantic interest - for a change :)
And if you've never see The Dish - an Australian film of some years ago, I strongly suggest you celebrate the 4oth anniversary first moon landings in July, by getting hold of a copy. It's simply one of the best written scripts I know and the more you watch it, the funnier it gets.