The pair recently co-founded a production company together, Artists Equity, which will release its first film, Air, next month.

Doc Martin creator said his brother Anthony, who directed The English Patient and The Talented Mr Ripley, ‘felt invincible’ before he died at 54.

The Hollywood actor said he had become ‘very guarded’ due to bad experiences and was concerned about saying things that may be career-ending.

Christopher Nolan’s latest film will explore the race to create a nuclear weapon