Old movie I think a couple of men throw out a wallet to see if anyone returns it and they do

Possibly Beyond Tomorrow?
Here's a snippet that matches your description:
....A novel ploy is hatched by the tuxedoed engineers to brighten up their Christmas Eve. Each hurls a wallet with his business card and a $10 bill to the snowy sidewalk outside their manse. The idea is that whoever returns the wallet and money will be invited to dine in sumptuous luxury...
http://en.wikipedia.org/wiki/Beyond_Tomorrow_(film)