Hi, Dirk.
It is my understanding that "West Side Story" is a modern interpretation of "Romeo and Juliet," not only set in the 1950s but also turned into a musical.
I have not seen much Shakespeare onstage unless it was a play performed by a local theatre company. When I've read the plays with my daughters, I would usually rent the older versions of the movies (such as Orson Welles or Sir Laurence Olivier as Macbeth; Marlon Brando as Marc Antony in "Julius Caesar"--the classic movies) as I felt the actors in the older films actually were able to act.
Not to cast aspersions on the younger actors who undertook the roles, but I have not found until recently the younger actors who could grasp the roles such as David Tennant in Hamlet. I understand that John Simm recently undertook the same role--I would have loved to see him in it!
Of course, the versions I saw recently with Sir Patrick Stewart as Macbeth and David Tennant as Hamlet were very good productions from the Royal Shakespeare Company. As my youngest says, "That's why it's called 'The Royal Shakespeare Company--they know how to perform Shakespeare.'"
I do recommend Sir Patrick Stewart's recent film version if you haven't seen it. It's set in a communist-like country and lends itself very well to the play.
Yesterday we took a break and watched Ian Mckellen and Dame Judy Dench in a late 70s production of "Macbeth."
That one was interesting as it had no scenery. It was very well done, but again, it was a production by The Royal Shakespeare Company.
Sorry if this is TMI. I'll get off my teacher's soapbox now.

Love begins when the needs of someone else become more important than your own.
~Lao Wei