300 Collector's Edition on DVD was great, it has some awesome extras, maybe you guys can grab a pirated copy of the 2nd disk.
Troy Director's Cut lifted the movie to a whole new level, Odysseus has a lot more scenes, Ajax shows up and gets some screen time, the battle scenes are longer, more brutal and more bloody. All around better than the original.
The Kingdom was good, not great however. Peter Berg did a great job directing it by keeping the pacing tight, the humor subtle and some intensity in every scene. The last 30 minutes are pulse pounding.
Heartbreak Kid was good but not near the normal funny output of Ben Stiller. I can't put my finger on quite what was wrong but it wasn't nearly as good as his last 4 or 5 films. Worth seeing but Knocked Up and Superbad are still the funniest films this year IMHO.