Porridge (1979)

This prison comedy is based on the popular British television series of the same name. Long time Slade prison inmate Fletcher is ordered by Grouty to arrange a football match between the prisoners and an all-star celebrity team. Fletcher is unaware that the match is only a diversion so that an escape can take place.

When Fletcher and his cell mate Lennie stumble on the escape, they are taken along, and find themselves having to break back into prison to avoid getting into trouble.