If intermissions were necessary to provide a break in a show under 2 /12 hours, then we would complain about not having them at the movies. Which, understandably, no one ever does.
Unless the show is considerably longer than that, the decision to have an intermission should be an artistic one. A great many plays are best suited to a two act structure and a first act curtain. And a great many plays have no place for one. It's all in the writing. The play's the thing.
Can anyone imagine what VENUS IN FUR or GOD OF CARNAGE would be like as two acters? No. Because they work as full length one act plays (I'm not bringing up these examples to provoke a discussion of whether these plays work or not; I think we can all presume that anyone who hated them in one act, would hate them more in two). In comparison, many plays, regardless of their overall merits, benefit greatly from the two act form and the peak that tops the first act (the first act curtain of the ON A CLEAR DAY revival may well have been the best thing in the show).
Still other plays work best in a three (and occasionally, even more) act structure.
Updated On: 8/28/12 at 05:26 PM