Cell phones P.s. Just a small add on (2022) is a Documentary, Family film that follows a grandson shows his grandmother how to navigate an iPad 2 full of clues for solving a puzzle. Over a phone call, she recites an email she wrote seven years prior. Cell phones P.s. Just a small add on is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 10.0 out of 10 from 1 votes. Fans of documentary movies may also want to explore similar titles below.