‘I would too dismiss him as “the whiner.” But I wasn’t being fair’

Yorgos Tsemberopoulos, the director of “Stelios,” a film that has surpassed 760,000 tickets, was unable to fully savor the joy of its success: “After the premiere at the Pallas Theater [in Athens] and in Cyprus last December, I tried to get up from an armchair and couldn’t.”