Survivors were invited to draw what they could remember of the Khmer Rouge, from torture to lost family members.
The Cambodian authorities have banned a public screening of the film, calling it illegal.
For two days, from April 29, researchers, experts and enthusiasts will gather in Athens, Ohio, to share their thoughts and findings.
Organizers said the success of this year’s pageant encouraged them to hold another one next year.
The parade made its way down Anaheim Street, a main thoroughfare of the city where tens of thousands of Cambodians have settled.
“The Children of Bassac” performs in New York, before moving on to Vermont, Connecticut, Boston and Lowell.
Cambodians nationwide rung in the Buddhist year 2555 on Thursday afternoon, ushering in the Year of the Rabbit at 1:12 pm.
Last year, 49 people were killed and 530 others injured in accidents over the holiday, due mostly to drunken or reckless driving.
The Cambodian Student Society of California State University started in 1959 by a group of Cambodian exchange students.
The Freedom-to-Write program began 20 years ago, after the Chinese government crushed a student revolt at Tiananmen Square in Beijing.
Cambodian hip-hop star Prach Ly joined a three-day festival to celebrate the literature and culture of Cambodia.
The artifacts were handed over to the Cambodian government at its embassy in Canberra on Thursday.