A movie about a pig, or a pet name in a couple’s relationship. It repeats a letter, yet only has four.

What living thing signifies adoration and also denotes elevation?

I’m curved like a smile and yellow all the way, peel me back gently to brighten your day.

I have knees but I don't have bones. I am scary even if I like things sweet. I am sometimes social and other times solitary. I like tunnels and burrows but not often in the ground. My sound often kills.

I flow unseen through wire or stream, I drift in time or lightning’s gleam. I mark the now, not what's long past, And in the sea, I’m moving fast.