Sort of. While it takes some liberties for cinematic purposes, it does draw elements from actual events and situations in the aviation industry at the time.
Yes, it could be. Many stories draw inspiration from real events or are based on true incidents, but there might be some fictional elements added for dramatic effect.
Most likely not. 'Air' is often imagined by the author or creator and doesn't stem from actual happenings. It's a product of imagination and storytelling.
Not necessarily. 'In America' could be inspired by real-life situations but could have been embellished or changed to make for a more engaging story. Many works of fiction draw from reality but aren't strictly true.