The annual European cinema get together is back for its fifth year in Barcelona. It is a particularly interesting time for the industry as it seems slightly unsure whether to bask in the glow of the great box office year of 2015 (“Jurassic World” is about to cross the $1 billion mark world-wide this weekend) or worry about the storm clouds of declining youth attendance, threats from online film distribution and Brussels bureaucrats meddling with market forces in an effort to create a single European digital market.