This is a subtrope to Vindicated by History. These are films that started as box office failures that would have been forgotten in the dust bin of history. Through frequent airings on premium or basic cable channels because they're cheap, handy filler, they gather a devoted audience that sees its entertainment value despite the obvious flaws. Sometimes, these film bombed when they were first released and were just misunderstood at the time but a later time period and cable made them popular. This can also happen to a film if it gets featured on Mystery Science Theater 3000, and, in fact, is the cause of many a Missing Episode of said series; after a movie was MiSTied, it often gained in popularity, which raised the price for the rights beyond what Best Brains (or Rhino/Shout Factory) was a