A major disappointment - given the amount of time spent on restoring the classic silent feature to nearly its full original length (about 90 mins - previously it had only been around as a 50 minute version), you'd think this DVD would have had a commentary by someone cinema-minded. Why stick on a guy who is an expert on Conan Doyle LITERATURE? The end result is predictable - not much about the film itself and several long spaces where nothing is being said, which is kinda a kiss of death for a silent movie audio track. Lost World = Lost Opportunity.