Firstly, I'd like to point out that this critical analysis 
is based solely on what I learnt in School, but I think I've done a 
good job. And now, on with the show.

	The Key symbolism Present in Leon is the contrast between 
light and dark imagery. The clash between light and dark is a classic 
device, used to spell out the good and the evil clearly, to the minds 
of the audience. There is, however,  an inherent irony running through 
the symbolism of Leon, turning this and many other conventions on their 
respective heads. 

	Lets look at the clothes. Leon dresses almost completely in 
black, even though he is the hero of the film. Stansfield, the principal 
villain of the piece, wears light greys and whites throughout, thus 
turning the light and dark contrast on its head, from a particular point 
of view. A more observant viewer, might however, point out that underneath 
the Black trenchcoat, leon wears white, and that stansfield is black 
on the inside. This theory is backed up by the occupations of the two 
men. 
	Leon is a professional hitman, technically a criminal - but deep
inside, hes a good person, albeit one who has lost his humanity. 
Stansfield on the other hand, is a police officer, a symbol for higher 
moral values, but deep inside, he is corrupt, and evil. 

	Another interesting irony is the issue of education. Stansfield
is an educated man. He is a fan of classical music, and quite intelligent.
Leon on the other hand, is illiterate. This would seem to suggest that
education does not necessarily negate savagery. 
 	
       Other Symbols:  Leons movies
			Milk
			showering
			the plant
			mathilda as a symbol of his lost humanity