The Dark Knight - great IMAX-shot visuals, amazing atmosphere and music, action right out of the gate. Sets the tone that the Joker is one crazy mf'er while being basically an entire heist movie in a few short minutes.
Star Trek: Into Darkness - The first 10 minutes is my favorite demo sequence of all time. COLORS are really vivid and make the alien world look actually, well, alien. Good audio effects with spears whooshing by and water falling off the ship. Really nice cinematic shots of the Enterprise and the volcano. Ignore what the characters are saying (because it's all dumb) and stop watching the movie after the alarm clock goes off, but everything else is about the best thing you can watch on a really nice home theater setup.
...you are taking about the Texas north of Mexico right? Not some other Texas that isn't openly hostile to anyone not cis heterosexual?