Tale of a Dublin binman who is a Gaelic sportsman at the weekend.
Views of Dublin include various CIE Leyland Titans:
Later in the film Rooney (Gregson) runs to catch a bus, CIE R727 (OIK919), a 1957 Leyland Titan OPD2/1 with CIE body:
It appears CIE R317 was used for the interior scenes with back projection. This would be a 1948 all-Leyland Titan PD2/3 (ZH4466):