Every now and then, with great infrequency (alas), a film comes along that is like no other and completely knocks you for six, and that is Embrace of the Serpent. The first Colombian film to be nominated for an Oscar — it lost to Son of Saul, should you set any store by such things — it was filmed in the Colombian section of the Amazon basin, with a script developed in consultation with native tribes, and tells the story of a shaman’s encounters with two white scientist explorers, which unfold in different time periods.