The Duck (to Valentine): I will always go and do dumb things for you (like going to look for you, even if you are a big stupid head and go off without me!)—and it means to say I love you.
Right before Valentine and Lost escape through the Serpent/Venice's door:
Valentine: Will you just let me apologize! I have never done anything for you and you have always done everything for me, even stupid dumb stunts you know you can't do—
Serpent: You're my brother. I'll always do dumb things for you. And whatever I choose to do, you owe me nothing.
Rooting for the Empire: When you have the most prominent antagonist played by the lead singer of Skillet, and turn his Villain Song at the end into an epic metal number, this is bound to happen for some Christian metal fans.