There are just a few shops in Kiev where they sell films, and they are quite expensive i should say (i don't know how expensive are they compared to Sweden).

Check out Fotofond There's also Exar, but the've got a crappy website (no prices there), as i remember films are more expensive there compared to Fotofond.

There are also people selling films on forums(films are supposedly cheaper), but i assume you should know russian for it)) here's the link to the forum
take a look at it, most people leave their emails, so you could write to them in advance and take a chance

1$ ~ 8 hrn
1€ ~ 11 hrn