This movie is not available from any oficial DVD producers at the current time. I believe the company that initially produced it is no longer in business. The actress involved looks totally different today. I happen to like Diane Lane as an actress and this is a rarity. This movie may only be currently available through ebay as a vhs casette tape.
http://www.imdb.com/title/tt0093379/?ref_=fn_tt_tt_1