This is the third movie in which Rachel McAdams stars as the love interest of a time traveler. The previous ones were The Time Traveler's Wife (2009), in which she played the titular wife to Eric Bana's character and Midnight in Paris (2011), in which she played the fiancée of Owen Wilson's character.
Rory towards the end of the film is reading the book 'Trash' which is Curtis's next film (Curtis wrote the screenplay for both Trash (2014) and About Time (2013)).
Tim describes his mother more like a Bernard than a Mary. Richard Curtis always tries to include a Bernard character in his movies. The inspiration comes from Bernard Jenkin, the Tory MP for North Essex and former shadow defense secretary. Mr Jenkin's wife is a former girlfriend of Richard Curtis.
Tim passes by Abbey Road Studios when he arrives in London. For decades, the logo of the music company EMI could be seen above the name of the studio. In 2013, the EMI logo was removed above the studio name because the company was sold to Universal Music in September 2012, and, to comply with international regulators, EMI's European operations were sold to Warner Music in 2013. However, the studio was one of the operations that Universal Music was allowed to keep, but no logo of the new owner was put in place of the old EMI logo.