In the 1970s he began working for RTÉ, Ireland's national broadcaster, where he learned camera operation and general studio production.
[3] He has directed three feature films: Traveller (1981), written by Neil Jordan;[4] Reefer and the Model (1988); and High Boot Benny (1993).
All his films share a general concern for those on the margins of what was an increasingly affluent Irish society.
[citation needed] Comerford's films of the 1970s and 1980s featured dysfunctional familial settings, analogous to Ireland's political and religious conditions at the time.
[5] His early films have been described as challenging to watch, as they often do not follow a linear narrative, but move forward as a series of vignettes.