Peter just need to take her to a theater that offers audio descriptions

In the 1990s at cinemas in California, RP International began to offer audio descriptions for theatrical films under the brand TheatreVision, relayed via earpieces to those who request it. A clip from Schindler's List was used to pitch the concept to the film's producers Gerald Molen and Branko Lustig, and one of the first films to be presented in this format was Forrest Gump (1994).

Looks like we are 6 years too early for that.

The theater in my hometown had two closed off rooms in the very back. One for smoking, and one for crying children. Had this been the case for Peter he could have taken Denise into one of those and described the on screen action for her. However, they likely would have just been making out.