Dingles For Richer For Poorer will explore two parallel futures for the show's long-standing clan after they purchase a Eurobillions rollover ticket in the hope of winning a fortune.
Zak (Steve Halliwell) and Belle (Eden Taylor-Draper) buy the ticket following financial struggles for the family, who have been forced to eat scraps and sell old bric-a-brac to make ends meet.
As the story continues, viewers are presented with two very different worlds - one which sees the family winning the lottery, and another showing a less appealing fate featuring lies and bogus tickets.
Along with Zak and Belle, the comedy film stars Lisa (Jane Cox), Sam (James Hooton), Samson (Sam Hall), Cain (Jeff Hordley), Marlon (Mark Charnock) and Chas (Lucy Pargeter).
Charity Tate (Emma Atkins), Noah Tate (Jack Downham), Jimmy King (Nick Miles) and Nicola King (Nicola Wheeler) complete the lineup.
Dingles For Richer For Poorer will be available on DVD and to download from November 15.