It's a powerful play and one of the earliest Greek plays to survive the passage of time. It's deeply allegorical but still holds messages for us today. It stars Ben Whishaw as the stranger/god and Bertie Carvell as Pentheus and his mother who kills him. It was part mesmerising and part annoying, particularly the long pauses given to the chorus to chant and sing, but the overall power of the piece was never lost. In some sense, it's just as valid today.
Why is dressing in women's clothing meant to be demeaning? Iggy Pop posted a photo of him in a dress a few years ago to say he didn't think it was shameful to wear women's clothes since it wasn't shameful to be a woman and that's still relevant. Dionysius appears wearing a dress for most of the play and persuades Pentheus to dress as a woman to shame and ridicule him but, in the final scene, Dionysius appears wearing horns as an angry and revengeful god. You can probably read a lot into that.