Jamie Lang Filmax has announced the first of what is sure to be many key sales for its award-winning Spanish drama “Mediterráneo: The Law of the Sea” to Adler Entertainment in Italy, hot off the heels of an Audience Award at the country’s Rome Film Festival.News of the deal comes as Filmax presents “Mediterráneo: The Law of the Sea” at this week’s American Film Market.Marcel Barrena, a filmmaker with a knack for retelling true stories on the big screen in both documentary and biographical films