Before joining the faculty at BYU, he worked as an assistant professor of documentary film at St. Edward's University in Austin, Texas. He also shot, directed, and edited over twenty short films for Project Runway while living in San Francisco. Prior to his work in California, he worked as the Documentary Arts Director/Instructor for Spy Hop Productions and the Sundance Institute's youth documentary workshops. Christopherson's first film was titled "Only the Pizza Man Knows," and was broadcast internationally for over a year on BYUtv.
In 2006 he was awarded an Oscarson Discovery Grant, which enabled him to accept an internship at WGBH, a Boston based public television station. He gained valuable experience in the station's American Experience Television Series department. In 2013 his film, Convert, was shown at the LDS Film Festival.
In 2015, Christopherson and Brad Barber’s film, Peace Officer, was chosen as the Indie Project of the Day on Indiewire and was selected to premiere at the 2015 South by Southwest Film Festival in Austin, Texas. At the Festival, it received the Grand Jury Prize for best documentary feature film as well as the Audience Choice Award. At the 2015 Full Frame Film Festival, the film won the Kathleen Bryan Edwards Award for Human Rights. In May of that year, the film won the Audience Award for Best Documentary Feature and the David Carr award for truth in non-fiction filmmaking at Montclair University in New Jersey. The same month, the rights to the film were acquired by Gravitas Ventures, and the film was set for a theatrical release in Fall 2015 with an air date on PBS' Independent Lens in Spring 2016. In June of 2015, they were invited to show their documentary at AFI DOCS in Washington DC, and were among a select group from the festival invited to attend a two-day "Impact Lab" hosted by AFI and Picture Motion. The film was also the featured August film in the 2015 Hamptons Film Festival “SummerDocs” series, and, in December, was announced as a grant winner from the AFI Docs/NBC Universal Impact organizations. Christopherson and Barber were included on Variety's 2015 list of "10 Documakers To Watch," and also met all the qualifications to be considered for the Oscars.
- Indiewire - "Gravitas Ventures Acquires SXSW Winner 'Peace Officer'" (13 May 2015)
- Hollwood Reporter - "Award Winning Doc 'Peace Officer Goes to Gravitas Ventures" (12 May 2015)
- LA Times - "SXSW: 'Krisha' and 'Peace Officer' win top jury prizes'" (12 March 2015)
- BYU Universe - BYU team scores top honors at SXSW for documentary film 'Peace Officer' (23 March 2014)