I have a pentax slr mz-50 film camera can i use the lens on digital camera?

I want to save some money buying a new digital camera. If so where's the best place to find one?

I will expand on the previous answer...

Pentax K10D/K100D will also accept
M42 (screw mount) lenses with a inexpensive adapter <$22
Pentax 645 lenses will also adapt to the DSLR's but requires a much more expensive adapter.

Your MZ-50 uses Pentax KAF mount lenses. The answer is yes and more: The Pentax K10D digital SLR uses Pentax KAF2, KAF or KA mount lenses