One of the 11 pictures in contention for the Crystal Globe at this year’s Karlovy Vary IFF is the charming black and white film Fremont by Babak Jalali. In an interview, the British-Iranian director discusses the piece of information that initially led to the project, how first-time actress Anaita Wali Zada was cast via social media, and what well-known actor Jeremy Allen White brought to his relatively small but crucial role.