Nice Girls Don't Explode is a 1987 American independent comedy film produced by Douglas Curtis, directed by Chuck Martinez, and starring Barbara Harris, Michelle Meyrink, William O'Leary, Wallace Shawn, and James Nardini.
April Flowers (Michelle Meyrink) is kept away from boys by her overprotective mother (Barbara Harris) because flames have a tendency to spontaneously erupt whenever her hormones are aroused; for April, "protection" on a dinner date is carrying a fire extinguisher.
As her mother explains, April is a "fire girl," whose very unstable body chemistry causes spontaneous combustion when she is aroused.
Hijinks result; as Andy tries to prove his point, he is thwarted at every turn by April's mother.
Further complications ensue when April befriends a lonely, obsessive pyromaniac named "Ellen" (Wallace Shawn), who becomes incensed at the constant mishearing of his real name "Ellen" for "Helen," after which he throws Bic lighter flicking snits, trying to set his tormentors ablaze.