From February to April 2013, Canadian Images of Vietnam was featured in the National Gallery of Canada installation, "Clash: Conflict and its Consequences".

[8][9] In 2000, Ridgen's critically acclaimed documentary about Palestinian refugees in Lebanon, On the Borders of Gardens,[10] earned him a prestigious Canadian Association of Journalists Award.

During the production of Return to Mississippi, Ridgen learned of the 1964 Klan murder of two 19-year-old African-American men, Henry Hezekiah Dee and Charles Eddie Moore.

American Radical was released in 2009, premiering at the Chicago Underground Film Festival and winning the Audience Choice Award.

[28] In 2008, Ridgen, along with John Fleming of the Anniston Star, spearheaded The Civil Rights Cold Case Project[29][30] with Paperny Films and the Center for Investigative Reporting.

The Project brought together partners from across the media and legal spectrum to reveal long-neglected truths behind scores of race-motivated murders from the civil rights era, and to help facilitate reconciliation and healing.

The documentary aired the same day Stanley Nelson published an article [33] in the Concordia Sentinel newspaper revealing for the first time the identity of Arthur Leonard Spencer, a man alleged to have participated in Morris' murder.

A Confession to Murder Part II[48] aired on CBC Television March 8, 2013, with information about Anthony Ringel's re-arrest.

[53] The first season focuses on the 1972 disappearance of Adrien McNaughton, a five-year-old boy who vanished during a family fishing trip in Eastern Ontario.

40 years later, Charles's brother Thomas returns to Mississippi with David Ridgen to reopen the case and confront the Klan.