Class Day 2015
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During his Class Day address, film director, screenwriter and producer Christopher Nolan challenged seniors to help improve the world by chasing their reality, not just their dreams. Nolan is known for the films "The Dark Knight" Batman trilogy and "Inception" among others.

Photo: Princeton University, Office of Communications, Denise Applewhite (2015)

Keynote speaker Nolan is presented a certificate commemorating his induction as an honorary member of the Class of 2015, as he stands next to student Class Day chairs (from left to right) Evan Coles, Adam Tcharni and Hanna Kim

Photo: Princeton University, Office of Communications, Denise Applewhite (2015)

Members of the Class of 2015 walk across campus before the start of the Class Day ceremony on June 1. The annual event is organized by seniors to recognize the achievements of their class.

Photo: Princeton University, Office of Communications, John Jameson (2015)

Princeton President Christopher L. Eisgruber addresses seniors during the 2015 Class Day ceremony on Monday, June 1. While rain caused the ceremony to be held in the University Chapel instead of outside on Cannon Green, the cheerful spirit of the event remained.

Photo: Princeton University, Office of Communications, John Jameson (2015)

In his Class Day speech, Eisgruber (back at the lectern) joked that the real reason the senior class invited Nolan to speak was to settle the debate about whether Batman went to Princeton or Yale. Eisgruber asked University Archivist Dan Linke (center with briefcase) to help answer the question by presenting Batman's secret alumni records.

Photo: Princeton University, Office of Communications, John Jameson (2015)

Students laugh at remarks during the Class Day ceremony, which is traditionally a lighthearted event held the day before Commencement.

Photo: Princeton University, Office of Communications, John Jameson (2015)

The event also includes the induction of honorary class members from the University community. Class Vice President Samisha Bansal (right) welcomes Charles Krank, assistant director of Facilities Operations, to the Class of 2015.

Photo: Princeton University, Office of Communications, John Jameson (2015)

In a nod to Nolan's films, students in the audience accessorized their black and orange class jackets with plastic Batman and Joker masks.

Photo: Princeton University, Office of Communications, Ryan Maguire (2015)

Seniors wearing their class jackets leave the chapel on the rainy morning of Class Day.

Photo: Princeton University, Office of Communications, Denise Applewhite (2015)