The Monthly Film Bulletin was edited in the mid-1950s by David Robinson, in the late 1950s and early 1960s by Peter John Dyer, and then by Tom Milne.

By the end of the 1960s, when the character and tone of its reviews changed considerably with the arrival of a new generation of critics influenced by the student culture and intellectual tumult of the time (not least the overthrow of old ideas of "taste" and quality), David Wilson was the editor.

During the years of full supporting programmes, The Monthly Film Bulletin printed long lists of B-features and short films with brief capsule reviews; by the 1970s, the tone and style of its reviews had changed considerably, and was increasingly influenced in some cases by the auteur theory and Marxist-influenced film theory, though some more traditional critics such as John Gillett remained, and others such as David McGillivray and Paul Taylor took exploitation movies more seriously than had previously been considered acceptable, while Steve Jenkins wrote a lengthy defence in 1981 of Glen or Glenda.

From January 1971, all films were listed in alphabetical order, mainly because a new wave of critics who were influencing the magazine had already overturned the assumptions implicit in the separation of films (for example, several by Sergio Leone and many from the stable of Roger Corman were only included in the "shorter notices" section).

From the July 1982 issue, The Monthly Film Bulletin changed again to include more feature articles, interviews, and photographs.