from "The Tragedy of Macbeth" (1971 film)
directed by Roman Polanski

Young Witch: Noelle Rimmington
Blind Witch: Maisie MacFarquhar
First Witch: Elsie Taylor

even more rhyming:

In Shakespeare's day, "heath" rhymed with "Macbeth", and "again" rhymed with "rain".


from D.J. Snider's "System of Shakespeare's Dramas" (1877):

What is the purpose for which the Poet employs these shapes? The answer must give the most important point for the proper comprehension of the play. It lies in the character of Banquo and Macbeth to see such specters. Hence they are absolutely necessary for the characterization. The Wierd Sisters are beheld by these two persons alone, and it must be considered as the deepest phase of their nature that they behold the unreal phantoms. Both have the same temptations; both are endowed with a strong imagination; both witness the same apparition. In other words, the external influences which impel to evil are the same for both.

In their excited minds these influences take the form of the Weird Sisters. Such is the design of the poet; he thus gives us at once an insight into the profoundest trait of their characters. In no other way could he portray so well the tendency to be controlled and victimized by the imagination, which sets up its shapes as actual, and then misleads men into following its fantastic suggestions...


Source: http://www.youtube.com/watch?v=A1lHYvxieB8