The film industry has been drastically upset by Covid over the past two years. The big blockbusters get the big publicity, unsurprisingly. The studios have a lot at stake, but they also have other income streams. Small films are often worse hit, with production shut down for months, no income and crews scattered around the world. Take a documentary called Off the Rails, which features young men taking ridiculous risks - jumping off buildings, climbing up narrow bridges, riding on top of fast-moving trains.