After the success of What's Up Doc Streisand made this zany comedy about a young married couple struggling to make ends meet. When an opportunity comes along to invest in the commodities market - pork bellies to be specific - Henry (Streisand) does her best to find someone to loan her the money to take advantage of it. She's unsuccessful on all fronts except the neighborhood loan shark. When the deal takes longer to come through than expected she must try and pay off the note by working for a variety of shady characters, with hilarious results.
This film is on TCM as I write this. It's also available on DVD and can be rented on YouTube. It has something of a high profile for an obscure film because of Streisand's involvement. The trailer is above, uploaded to YouTube by lewylewel.
Obscurity factor: 3 (known to Streisand fans, available on DVD, not well known to the general public)