AP Films

AP Films or APF, later becoming Century 21 Productions, was a British independent film production company of the 1950s, 1960s and early 1970s. The company became world-famous with its imaginative children's action-adventure marionette shows - most notably Thunderbirds - produced for British independent broadcasting companies Associated-Rediffusion, Granada, ABC Weekend TV and ATV. At its height, the company employed over 200 staff.