Filmmaker Brandt Johnson and grammar guru Ellen Jovin chat about Rebel with a Clause, a new docu-comedy about Ellen’s pop-up grammar advice stand on a road trip across America

Brandt Johnson and Ellen Jovin are cofounders of Syntaxis, a communication skills training firm based in New York City. Ellen, an internationally acclaimed grammar and language expert, is the itinerant grammarian behind the Grammar Table, an informal pop-up advice stand that she launched in 2018 in...