King Arthur: I am your king.
Woman: Well I didn't vote for you.
King Arthur: You don't vote for kings.
Woman: Well how'd you become king then?
[Angelic music plays...]
King Arthur: The Lady of the Lake, her arm clad in the purest shimmering samite held aloft Excalibur from the bosom of the water, signifying by divine providence that I, Arthur, was to carry Excalibur. THAT is why I am your king.
Dennis:[interrupting] Listen, strange women lyin' in ponds distributin' swords is no basis for a system of government. Supreme executive power derives from a mandate from the masses, not from some farcical aquatic ceremony.
That and this are the funniest scenes in that movie IMO:
GUARD #1: What, ridden on a horse?
GUARD #1: You're using coconuts!
GUARD #1: You've got two empty halves of coconut and you're bangin'
ARTHUR: So? We have ridden since the snows of winter covered this
land, through the kingdom of Mercea, through--
GUARD #1: Where'd you get the coconut?
ARTHUR: We found them.
GUARD #1: Found them? In Mercea? The coconut's tropical!
ARTHUR: What do you mean?
GUARD #1: Well, this is a temperate zone.
ARTHUR: The swallow may fly south with the sun or the house martin
or the plumber may seek warmer climes in winter yet these are not
strangers to our land.
GUARD #1: Are you suggesting coconuts migrate?
ARTHUR: Not at all, they could be carried.
GUARD #1: What -- a swallow carrying a coconut?
ARTHUR: It could grip it by the husk!
GUARD #1: It's not a question of where he grips it! It's a simple
question of weight ratios! A five ounce bird could not carry a 1 pound
ARTHUR: Well, it doesn't matter. Will you go and tell your master
that Arthur from the Court of Camelot is here.
GUARD #1: Listen, in order to maintain air-speed velocity, a swallow
needs to beat its wings 43 times every second, right?
GUARD #1: Am I right?
ARTHUR: I'm not interested!
GUARD #2: It could be carried by an African swallow!
GUARD #1: Oh, yeah, an African swallow maybe, but not a European
swallow, that's my point.
GUARD #2: Oh, yeah, I agree with that...
ARTHUR: Will you ask your master if he wants to join my court
GUARD #1: But then of course African swallows are not migratory.
GUARD #2: Oh, yeah...
GUARD #1: So they couldn't bring a coconut back anyway...
GUARD #2: Wait a minute -- supposing two swallows carried it together?
GUARD #1: No, they'd have to have it on a line.
GUARD #2: Well, simple! They'd just use a standard creeper!
GUARD #1: What, held under the dorsal guiding feathers?
GUARD #2: Well, why not?