From my favourite bad movie:
"I'm warning you! You are forcing me to carry out my most devastating act of magical madness!"
Plan 9 is of course firtile ground, too:
"Inspector Clay is dead, murdered, and somebody's responsible!"
"Because all you of Earth are idiots."
"We are all interested in the future, for that is where you and I are going to spend the rest of our lives. And remember my friend, future events such as these will affect you in the future."
The Return of Captain Invincible:
"Together, we're part of the roughest, toughest, biggest, kindest, fairest, bestest darn gang in the whole world!"