:crossed_swords: by RandomHasard, IMDB Mon May 4 2015
What happened to him after the King found out that he slept with his wife?
by pol-edra, Mon May 4 2015
:crown: Several possibilities: he just wandered around, as knights errant are prone to do; he went back home to Brittany; he conquered a castle and made his new home there (the Dolorous Guard)...
Considering the state of near madness and complete hairiness he is in when Percivale next encounters him, I think the movie hints at Lancelot's madness in the Morte Darthur, during which Lancelot goes mad for grief (but for very different reasons), abandons his horse and armour and runs naked in the forest, living on berries and water from the streams. The madness of grieving knights is a common enough motif. More often than not (although I do not believe that is the case for Malory's Lancelot, I'd have to check), the mad knight becomes so animal-like in his behaviour that he actually grows hair on his whole body.
:loudspeaker: by Ace_Spade, Mon Aug 3 2015
I don't remember any hair growing on his body. But, I'm fairly certain he ultimately winds up as a monk in the woods, repenting of the calamities he caused. I'm talking Mort D'Arthur here, not Excalibur. It's been too long since I've seen the film to remember anything about Lancelot's fate in that.
:crown: by pol-edra, Tue Aug 4 2015
No hair on Lancelot's body in Excalibur, no; but he is hairy enough in terms of hair and beard that this rendition of the character made me think of other mad knights in medieval literature.