Amherst College Pre-College Courses - http://goputney.com/programs/amherst-college/
Film Studies and Film Making
Art Institute of Chicago - http://www.saic.edu/cs/high_school/
Film, Video, New Media: Character to Animation; Digital Animation Studio
Berridge Conservatory (3 hours from Paris, France)
Film Program?
Brown Pre-College - brown.edu/ce/pre-college/pre-college-courses.php
Digital Video Production
California College of the Arts Pre College - https://www.cca.edu/academics/precollege/courses/film
California State Summer School for the Arts - Applications typically due by the end of February - www.csssa.org/index.php/general-info/
Film and Video
Chapman University - http://www.chapman.edu/dodge/special-programs/summer-film-academy/index.aspx
Summer Film Academy
Choate Rosemary Hall Summer - www.choate.edu/summerprograms/highschoolprograms.aspx
Documentary Filmmaking; Video Production
Colorado College Pre-College - www.coloradocollege.edu/offices/summersession/pre-college/
The Film Institute
Columbia College High School Summer Institute - www.colum.edu/hssi
Introduction to Cinema Production
Columbia University - https://summer.sps.columbia.edu/courses/summer-courses/film
DeSales University (PA)
Summer Video Institute - http://www.desales.edu/svi
Emerson College (MA):
Emory University Pre-College Summer - http://precollege.emory.edu/courses/index.html
Introduction to Film - More of a Film Studies class than Film Making
Interlochen Summer Camp - http://camp.interlochen.org
Digital Filmmaking; Animation; Documentary Filmmaking
Knowledge Exchange Institute - http://www.keiabroad.org/programFinder.php
Media and Film in England, India, or Turkey -- More of a Film Studies class than Film Making
Marist College Pre-College Program - www.marist.edu/summerinstitutes/programs.html
Digital Movie Making
University of Miami Summer Scholars Program (FL) - http://miami.edu/dcie/index.php/ssp
Digital Media Production
Filmmaking
National High School Institute: Northwestern University - http://www.northwestern.edu/nhsi/
Film and Video
NYU Tisch Summer High School - http://specialprograms.tisch.nyu.edu/page/hsStudents.html
Summer Filmmakers Workshop for High School Students
Penn State Summer Study - http://www.summerstudy.com/penn-state
The Penn State Camp for Filmmakers
Penn State Intensive Non-Credit Workshops - http://www.summerstudy.com/penn-state
Move Over Spielberg: Digital Video/Filmmaking
Rhode Island School of Design - http://ce.risd.edu/programs/pre-college-program-1
Film/Video
Sarah Lawrence Pre-College Programs - www.sarahlawrence.edu/highschool
The International Film Making Institute of NY's Summer Filmmaking Intensive
SCAD Pre-College Seminars - http://www.scad.edu/admission/admission-information/pre-college/scad-summer-seminars
Video: Modern Storytelling
Introduction to Video Production
UCLA Summer Institute - http://www.summer.ucla.edu/Institutes/GeneralInfo/highschool.htm
UCLA Design Media Arts Summer Institute
UCLA Summer Classes for HS Students - www.summer.ucla.edu/highschool
College Level Classes such as Intro to Art and Technique of Filmmaking; Digital Cinema; Art and Practice of Motion Picture Producing; Planning Independent Feature Production; Overview of the Contemporary Film Industry
University of Southern California - The School of Cinematic Arts Summer Program
University of Tulsa - https://www.utulsa.edu/academics/colleges/henry-kendall-college-of-arts-and-sciences/Departments-and-Schools/Department-of-Film-Studies/FilmCamp.aspx
Screenwriting and Filmmaking Camps
Vancouver Film School - https://secure.vfs.com/summerintensives
Yale University - http://summer.yale.edu/find-your-program/yale-summer-film-institute
Yale Summer Film Institute
(Hattip to Marissa Margosian and Dennis Eller for their work on this list.)