Robin Williams' final film. He had completed his dialogues before his death in August 2014 and the film was released a full year after.
This is the first movie since The Meaning of Life (1983) that featured all five surviving members of Monty Python. According to Writer and Director Terry Jones, this will probably be the last time they will appear in a movie together.
Brian Cox: Astronomer and former rock musician, as a TV presenter trying to rationalize the sudden change in the climate which has been caused by Neil.
Alan Yentob: Former head of the BBC and culture vulture, as a guest at Neil's book event. Yentob is a well known figure in the UK, frequently at book festivals and on late night arts shows.