The Theory of Everything is a 2014 British biographical drama film produced by Working Title Films and directed by James Marsh. Set at the University of Cambridge, it details the life of the theoretical physicist Stephen Hawking. It was adapted by Anthony McCarten from the 2007 memoir Travelling to Infinity: My Life with Stephen by Jane Hawking, which deals with her relationship with her ex-husband Stephen Hawking, his diagnosis of motor neurone disease — also known as amyotrophic lateral sclerosis, (ALS) — and his success in the field of physics. The film stars Eddie Redmayne and Felicity Jones, with Charlie Cox, Emily Watson, Simon McBurney, Christian McKay, Harry Lloyd, and David Thewlis featured in ing roles. The film had its world premiere at the 2014 Toronto International Film Festival on 7 September 2014. It had its UK premiere on 1 January 2015.

The film received positive reviews, with praise for the musical score, cinematography, and the performances of Jones and especially Redmayne. It was also a box office success, grossing $123 million against a $15 million production budget. The film gained numerous awards and nominations, including five Academy Award nominations: Best Picture, Best Actress (Jones), Best Adapted Screenplay, Best Original Score (Jóhannsson) and won Best Actor for Redmayne. The film received 10 British Academy Film Awards (BAFTA) nominations, and won Outstanding British Film, Best Leading Actor for Redmayne, and Best Adapted Screenplay for McCarten. It received four Golden Globe Award nominations, winning the Golden Globe Award for Best Actor – Motion Picture Drama for Redmayne, and Best Original Score for Jóhannsson. It also received three Screen Actors Guild Awards nominations, and won the Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Leading Role for Redmayne.