There are lot of them, even in communist regime there were made good films. I would probably suggest something from the pen of Zdeněk Svěrák.
Kolja- this one got Oscar
Nejistá sezóna - tragicomedy about theater players.
Loads of comedies like Trhák, Jáchyme hoď ho do stroje, Kulový blesk…
These are classics https://m.imdb.com/name/nm0006664/?ref_=fn_al_nm_1
It is one good thing that somehow survived 90’s chaos - public transport.
One year pass for all ČD trains cost about 900 €/year; most cities have year pass under 200€.