First one's a heart, second one is a shark.

I wondered about the light in a mirror sphere thing as a kid. I hypothesized it would become so bright that it would eventually cook the sphere (or come busting out in huge quantities when a portion of the sphere was removed).

I'm talking about the whole series, obviously. We've been taunted with this one so many times, but there's just no way they could do it as a movie. On the other hand, they could probably pull the whole thing off in just 3 or 4 seasons on HBO.