Environmental Film Screening ‘A Chemical Reaction’ Saturday, March 20 by Rosemary Piser on March 17, 2010 Rosemary Piser Author More in Environmental: People Outside Will Be Injured: Severe Thunderstorms Strike Park Forest March 31, 2026 Park Forest Officials Urge Residents to Protect Pipes as Coldest Air of the Season Continues December 14, 2025 Park Forest Workshops Join Global Effort to Prevent Bird Collisions August 21, 2025 Park Forest, IL–(ENEWSPF)–March 17, 2010. The film ‘A Chemical Reaction’ will be screened on Saturday, March 20 at 3 p.m. at Columbia College’s Ferguson Auditorium 600 S. Michigan, Chicago.