Dr. Who's reality (Dr. Who and the Daleks)

One of the possible parallel universe versions of the Tenth Doctor drawn up by Gabby Gonzalez's "magic" notebook resembled (COMIC: Four Dimensions) the version of Dr. Who who had a niece called Louise and a granddaughter called Barbara in addition to his granddaughter Susan. This suggested that his reality was a parallel universe relative to the Tenth Doctor's. (NOTVALID: Dr. Who and the Daleks, Daleks' Invasion Earth 2150 A.D.) However, other accounts of how this Dr. Who related to other versions of the Doctor existed. (PROSE: Unnatural History, The Five O'Clock Shadow, etc.)

The Movie
Dr. Who and the Daleks was a Technicolor feature film released in 2065 (PROSE: Lady Penelope Investigates the stars of the Sensational new film Dr. Who and the Daleks!) or sometime prior to the 1970s. (PROSE: A Visit to the Cinema) It was a fictionalised account of the circumstances of the Thal-Dalek battle which had been reported eighteen months prior to 2065. (PROSE: Lady Penelope Investigates the stars of the Sensational new film Dr. Who and the Daleks!) The film starred Peter Cushing (PROSE: Lady Penelope Investigates the stars of the Sensational new film Dr. Who and the Daleks!, A Visit to the Cinema) as Dr. Who and Roberta Tovey as his granddaughter. At one point, their characters were captured by the Daleks, including at least four silver War Machine Daleks, a Red Dalek and a Black Dalek. (PROSE: Peaceful Thals Ambushed!)

Agent 671107 and their friend went to see Dr. Who and the Daleks at the cinema. (PROSE: From Agent 671107) By one account, the Third Doctor enjoyed the film and its sequel in a local cinema in the 1970s. The film had a scene in which a young chap sat upon a box of chocolates. (PROSE: A Visit to the Cinema)

It was followed by a sequel, Daleks: Invasion Earth, with both films being collected as VHS cassettes within UNIT's Black Archive. The two movies were very much enjoyed by the Tenth and Eleventh Doctors, who pitched a third one to Cushing on the phone. (PROSE: The Day of the Doctor)

Other references
While being interrogated by Davros in an agony seat during the Genesis Incident, the Fourth Doctor stated that a Dalek invasion of Earth, which he claimed occurred in the year 2000, was foiled by the magnetic properties of the Earth's core which the Daleks had attempted to mine, as well as the determination of human resistance fighters. (TV: Genesis of the Daleks)

During the Last Great Time War, the Time Lords were aware of multiple, alternative accounts of the Doctor's first encounter with the Daleks, all of which involved Ian Chesterton. Opinions varied as to whether these accounts were apocryphal or evidence of Dalek activity in parallel dimensions. (AUDIO: Sphere of Influence, PROSE: Dalek Combat Training Manual)

Behind the scenes

 * Blue Dalek props from the film Dr. Who and the Daleks were modified and used in the television serial The Chase, creating a new variant of Dalek distinct from the silver Daleks.
 * The Road to Conflict, a continuation of The Daleks, was written to lead into Daleks' Invasion Earth 2150 A.D.. The Daleks, which followed the Daleks without the Doctor or Dr. Who, began with an account of their their creation at the hands of Yarvelling, an account which was contradicted by the introduction of Davros in the television series.
 * In an interview in DWM 490, Steven Moffat proposed that Dr. Who recklessly altering Time to change the outcome of the bank robbery at the end of Daleks' Invasion Earth 2150 A.D. caused him to accidentally restart the universe, rewriting himself into a Time Lord and losing his family name.
 * A Red Dalek identical to the Red Dalek seen in the film Daleks' Invasion Earth 2150 A.D. was to be one of the Daleks in the rebuilt Dalek City in The Witch's Familiar. However, while it was present on set during shooting, no footage of this particular Dalek prop made it to the final cut of the episode, with its existence only being revealed through production photographs released on the BBC website.