Question: Which documentary by Arturo Perez Jr. appeared at an university that is part of the 23-campus California State University system?

Context paragraphs:
California State University, Monterey Bay: California State University, Monterey Bay (CSUMB) is a public university in the 23-campus California State University system, located in Marina and Seaside, in Monterey County, California.  It is on the site of the former U.S. Army base Fort Ord in the northern Central Coast of California region, and is accredited by the Western Association of Schools and Colleges.

Where Have All the Flowers Gone? (film): Where Have All the Flowers Gone?  is a 2008 documentary film directed by Arturo Perez Jr. and produced by Arturo Perez Jr., Joel Sadler and Billy Troy.  Perez, Sadler, and Troy travel to San Francisco to recapture the Summer of Love more than 40 years previously.  The film premiered at the Wine Country Film Festival on August 4, 2008 and at San Francisco State University on September 26, 2008.

California State University, East Bay: California State University, East Bay (commonly referred to as Cal State East Bay, CSU East Bay, or CSUEB) is a public university located in Hayward, California, United States.  The university, as part of the 23-campus California State University system, offers 136 undergraduate and 60 post-baccalaureate areas of study.  California State University, East Bay has been designated a top–tier institution among master's–granting universities in the west by "U.S. News & World Report" and has been recognized as a "Best in the West" college by the Princeton Review.

San Francisco State University: San Francisco State University (commonly referred to as San Francisco State, SF State and SFSU) is a public research university located in San Francisco, California, United States.  As part of the 23-campus California State University system, the university offers 118 different Bachelor's degrees, 94 Master's degrees, 5 Doctoral degrees (including two Doctor of Education degrees, a Doctor of Physical Therapy, a Ph.D in Education and a Doctor of Physical Therapy Science), along with 26 teaching credentials among six academic colleges.

California State University, Sacramento: California State University, Sacramento (CSUS; Sacramento State, informally Sac State), founded in 1947 as Sacramento State College, is a public comprehensive university in the city of Sacramento, the capital city of the U.S. state of California.  It is the eleventh oldest school in the 23-campus California State University system.  The university enrolls approximately 30,500 students annually, has an alumni base of 215,000 and awards 7,000 degrees annually.  The university offers 151 different Bachelor's degrees, 69 Master's degrees, 28 types of teaching credentials, and 2 Doctoral degrees.  The university also has extensions in Singapore, offering a unique IMBA (International Master's in Business Administration).

California State University, Bakersfield: California State University, Bakersfield (often abbreviated CSUB or shortened to CSU Bakersfield) is a public university located in Bakersfield, California, United States, and was founded in 1965.  CSUB opened in 1970 on a 375 acre campus, becoming the 19th school in the 23-campus California State University system.  The university offers 91 different Bachelor's degrees, 20 types of Master's degrees, and 12 teaching credentials.  The university does not confer Doctoral degrees.

California State University, Northridge: California State University, Northridge (also known as CSUN) is a public university in the Northridge neighborhood of Los Angeles, California, United States, in the San Fernando Valley.  With a total enrollment of 41,548 (as of Fall 2015) it has the largest student body of the 23-campus California State University system, and is one of the largest comprehensive universities in the State of California (behind UCLA) in terms of enrollment.  As of Fall 2014, the school had 2,096 faculty, of which between 745 and 784 (or about 40%) were on the tenure track.

California State University, San Bernardino: California State University, San Bernardino, (also known as Cal State San Bernardino or CSUSB), is a public university and one of the 23 general campuses of the California State University system.  The main campus sits on 441 acre in the University District of San Bernardino, California, United States, with a branch campus of 40 acre in Palm Desert, California, opened in 1986.  In 2013, California State University, San Bernardino was named a 2014 Best College in the Western Region by The Princeton Review for the tenth consecutive year, ranking CSUSB among the top 25 percent of universities across the nation.  Back in 2011, California State University, San Bernardino’s Jack H. Brown College of Business and Public Administration was recognized by "European CEO Magazine" as one of the top 20 schools of business in the world and one of the world's 18 most innovative business schools.

California State University: The California State University (Cal State or CSU) is a public university system in California.  With 23 campuses and eight off-campus centers enrolling 478,638 students with 24,405 faculty and 23,012 staff, CSU describes itself the largest four-year public university system in the United States.  It is one of three public higher education systems in the state, with the other two being the University of California system and the California Community Colleges System.  The CSU System is incorporated as The Trustees of the California State University.  The California State University system headquarters are at 401 Golden Shore in Long Beach, California.

California State University, Chico: California State University, Chico (also known as CSU Chico or Chico State), is the second-oldest campus in the 23-campus California State University system.  It is located in Chico, California, about ninety miles north of Sacramento.  As of the Fall 2016 semester, the university had a total enrollment of 17,557 students.  The university offers 126 types of bachelor's degrees, 35 types of master's degrees, and four types of teaching credentials.  The university does not confer doctoral degrees.

Supporting paragraphs: Where Have All the Flowers Gone? (film) San Francisco State University
Answer: Where Have All the Flowers Gone?