AN ATTEMPT WAS MADE TO ASCERTAIN WHETHER MOTION PICTURE FILMS OF SELECTED PHYSICS DEMONSTRATION EXPERIMENTS WERE AS EFFECTIVE AS DEMONSTRATIONS PERFORMED DURING COLLEGE PHYSICS LECTURES. A SECOND OBJECTIVE WAS TO DETERMINE WHETHER STUDENTS WOULD TAKE ADVANTAGE OF THE OPPORTUNITY TO VIEW SOME EXPERIMENTS ON FILM OUTSIDE OF CLASS ON A VOLUNTARY BASIS. THE INDEPENDENT VARIABLES WERE THE FORMS OF INSTRUCTIONAL TREATMENT AND THE DISTANCE FROM WHICH THE STUDENTS VIEWED THE DEMONSTRATIONS. STUDENTS (393) WERE RANDOMLY ASSIGNED TO TWO CLASSES (LIVE DEMONSTRATION AND FILMED DEMONSTRATION) AND, WITHIN EACH CLASS, TWO GROUPS OF SEATS AT DIFFERENT DISTANCES FROM THE LECTURE TABLE. THE SAME QUIZZES AND EXAMINATIONS WERE GIVEN TO ALL STUDENTS. THE FILMED EXPERIMENTS WERE AS EFFECTIVE AS THE CONVENTIONAL METHOD, AND STUDENT ACHIEVEMENT IS INDEPENDENT OF THE DISTANCE (UP TO 60 FEET) BETWEEN THE STUDENT AND THE EXPERIMENT PRESENTATION. THE AUTHORS CONCLUDE THAT STUDENTS WILL VIEW EXPERIMENTS ON FILM OUTSIDE OF THE CLASSROOM WHEN THE MATERIAL IS AVAILABLE. (JC)