Here are the rules.
1. No IMDB cheating
2. If you know where the one-liner is from, write the answer and if it is relevant state the situation.
3. When you've gotten the answer right you post a new one-liner and tell us if it is from a movie, TV-series or whatever.
The definition of a one-liner: A funny, cool or preferably badass line spoken with superb timing.
I'll start of with something easy. Which movie?
Hail to the king, baby!