A potter's wheel is used to spin the clay while the ceramicist shapes it into a form, where as a kiln is used to fire, or heat the clay.
Explanation:
most most of the play is set on the kowalskis apartment in the movie The director added to the feeling of claustrophobia by actually bringing the walls closer during each scene a difference between the play in the movie is that in the play the bowling alley is only referred to but is seen in the movie
