Watching the film in HD. This is a case where it makes sense.
Great film, shooting in Vienna and other places they found mostly authentic props and sets.
At least one case, where Hans Hass and Xenophon leave a Vienna hotel on Ringstraße shows them in front of a shiny golden rotating door from the 21st century. Not exactly authentic in this minor case, but the rest looks impressive and actors are also doing a good job. Some German actors don't sound very Austrian, but local stars including Harald Krassnitzer also compensate that.
A must-see for all divers and diving fans, both hobbyists and professionals.