The Coolidge Corner Theatre had a national party for its nine-year-old “Science on Screen” program on Monday night. Seventeen theaters across the country showed a Coolidge-produced video about the series, which pairs a film with a talk from a science expert. Each theater showed a different movie and brought in specialists for an audience discussion about the topic. In Brooklyn, the BAM audience got to see “Eternal Sunshine of the Spotless Mind” and hear from Joseph LeDoux, director of the Emotional Brain Institute at New York University. At the Hollywood Theatre in Portland, Ore., movie-goers got to see “Bill & Ted’s Excellent Adventure” and hear from James Butler, a physics professor at Pacific University, and Todd Duncan, PhD director of the Science Integration Institute and physics instructor at Portland Community College. Here in Brookline, the Coolidge crowd saw Stanley Kubrick’s “Paths of Glory” and heard from psychologist Steven Pinker, who attended the event with his wife, author Rebecca Newberger Goldstein.