Factual error: In World War 2 London, Pink is shown playing with an aeroplane model - an Avro York. The earliest available plastic model kit of this aircraft was produced in 1967. Inaccurate model aside, it begs the question of what a kid of Pink's age would be doing with a plastic model kit during World War 2 anyway.
Factual error: The Junkers JU87 Stuka that bombs the positions at Anzio, killing Pink's father, is painted in the wrong camouflage colours (desert 'flash' instead of green and grey) for Europe.
Answer: It's a portrait of Bob Dylan by Andy Warhol.