>>3690971Best way to see if it works is to load it with a cheap roll of film and try to use a wide range of shutter speeds.
As far as film goes, check out the prices for your local lab. BW film is usually cheapest to buy, but lots of labs charge more to develop it since it needs to be developed by hand. Odds are a cheap C41 (color negative) film like Kodak Gold or Colorplus or Fuji Superia will wind up cheaper as developing is done by machine and usually the most affordable.
Ignore any color films not made by Fuji or Kodak. They're either expired (fuck that) or rebranded and more expensive (seriously fuck that).