AP Films or APF was a British independent film production company of the 1950s until the early 1970s. The company became internationally known for its imaginative children's action-adventure marionette television series – most significantly Thunderbirds – produced for British ITV network companies Associated-Rediffusion, Granada, ABC and ATV. At its height, the company employed more than 200 staff.

Fireball XL5 is a 1960s British children's science-fiction puppet television series about the missions of Fireball XL5, a vessel of the World Space Patrol that polices the cosmos in the year 2062. Commanded by Colonel Steve Zodiac, XL5 defends Earth from interstellar threats while encountering a wide variety of alien civilisations.