In the futuristic romantic comedy Her, Joaquin Phoenix stars as a man whose romantic failures in the material world lead him to form an intimate relationship with his intelligent computer operating system, “Samantha” (brilliantly voiced by Scarlett Johansson). The feature film event of the 2018 Spring Cogfest, Her should interest cognitive scientists and anyone else curious about artificial intelligence, human-computer interactions, technology and society, and the future of the mind. (126 mins., DCP)