Fast forward to 9:50 -
Tina Louise has an early role in this Italian sword-and-sandal romantic drama set in Syracuse (the one in Europe, not New York). Her character, a Gypsy dancer, decides to do a little skinny dipping. Rossano Brazzi, playing Archimedes, is nearby experimenting with an array of mirrors that he ultimately uses to burn the invading Roman fleet. His aim is off, and instead of hitting the target he has set up he ignites Ms. Louise's pile of clothing. She has to improvise something to wear from the local foliage and the remains of her garments.
www.youtube.com/watch?v=JqT1Kr4Ozvk