The movie stars a series of animated trolleys and was put together over a nine-month period with the help of Glynn Vivian Learning Office, Tom Goddard.
The work is part of a pilot project between the Glynn Vivian and the Swansea Drugs Project to develop the artistic skills and creativity of participants.
Swansea Council is backing the scheme.
Ceri and John worked with Tom on all aspects of the film including writing, design, production and editing.
John said: "This project has had a profound effect on me because it's given me the courage and encouragement to apply to go on a foundation course in design which has always been an ambition of mine.
"These courses are so important to people who wish to further and better their education and self-esteem issues and the project has been instrumental in my sobriety."
Ceri said: "It's been great fun and has shown me there are many directions that can be explored and that inspiration by others is the key to doing well yourself. In the future I want to look at things that have inspired me through this film. The key to learning has undoubtedly been my enjoyment in participation and the fact that past influences are valuable lessons that can be taught.
"It was refreshing to make a film that stepped outside of the subject of drugs and working in the environment of the Glynn Vivian was a huge help and major inspiration."
Cllr Graham Thomas, Swansea Council's Cabinet Member for Culture, Recreation and Tourism, said: "This scheme is a great success story and shows how people can turn their lives around with the right levels of belief, encouragement and guidance.
"John, Ceri and our dedicated Glynn Vivian staff should be commended for what they've achieved."
The movie is being screened at the gallery on Friday 22 July at 11.30am and visitors are welcome to attend.
Have a look at www.swansea.gov.uk/
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