In the latest Guardian documentary, Tim, who has more than 4.5 million Instagram followers, has to make a big decision in his real life

Meet Tim, an 18-year-old Asian-American who has more than 4.5 million followers on Instagram. He lives online, grabbing his phone first thing in the morning and even sometimes taking baths with it. Although he usually shares funny memes on his massively popular page, he occasionally posts about mental health.

The documentary Share explores his reason for these posts and we discover that he has created a different identity for himself online than in real life. Will he be able to reconcile the two? Tackling issues of identity, family and communication, the film is a heartbreaking yet ultimately uplifting story about a Generation Z teenager at an important crossroads in his life.

Play Video 12:46 Share - An Instagram star at a crossroads

The directors Barna Szász and Ellie Wen both recently completed masters in documentary film and video at Stanford University. Szász is a Budapest-born filmmaker and video journalist specialising in online videos. Wen has directed and produced numerous shorts, documentaries and features, including White Frog, which she co-wrote.

Share has been a festival hit all over the world, including Doc NYC, Outfest and Dok Leipzig. It also has its own Instagram page.

Coming up: Diary of Cattle

In Indonesia, a herd of cattle live on a landfill site, adapting to life on pastures far from green.