One of the last great action movies...
Don't get me wrong - it has it's flaws - but you can't help but appreciate the look and style of it. From the glorious widescreen 35mm photography, to the slow motion shootouts and use of practical effects. It's one of the last great examples in the american action film catalog before cgi and digital technology came in and changed the look and feel of the medium. And not to mention Shane Black's special brand of dialog...
"I'll shoot my dick off!"
"What are you a sharpshooter now?"
...this one's up there with Die Hard for best Xmas vacation movies.