Romeo and Juliet on screen the story have also been filmed, most notably "West Side Story", Prokofiev's ballet "Romeo and Juliet" and "Romanoff and Juliet". Several theatrical films, such as "Shakespeare in Love" and "Romeo Must Die", consciously use elements of Shakespeare's plot. Producer Irving Thalberg pushed MGM for five years to make a "Romeo and Juliet", in the face of the studio's opposition: which stemmed from Louis B. Mayer's belief that the masses considered the Bard over their heads, and from the austerity forced on the studios by the depression. It was only when Jack L. Warner announced his intention to film Max Reinhardt's
Romeo and Juliet Romeo. Beyond this, the sub-plot of the Montague–Capulet feud overarches the whole play, providing an atmosphere of hate that is the main contributor to the play's tragic end. Shakespeare uses a variety of poetic forms throughout the play. He begins with a 14-line prologue in the form of a Shakespearean sonnet, spoken by a Chorus. Most of "Romeo and Juliet" is, however, written in blank verse, and much of it in strict iambic pentameter, with less rhythmic variation than in most of Shakespeare's later plays. In choosing forms, Shakespeare matches the poetry to the character who uses it. Friar Laurence,