It is with this realistic yet pessimistic tone that Herzog ends his entertaining, fairly instructive and well-rounded film.

A series of portraits of obsessed people, each painted by one of the most likable obsessives in cinema.

Into the Inferno is a strong argument for feeling a sense of wonder in the face of things you don't understand.

All in all, Herzog's most delightfully entertaining and purposeful documentary outing since 2007's treasurable Encounters at the End of the World.