Question: Which movie based on a book series by Mary Norton had the song Portobello Road in it?

Context paragraphs:
The Time Traders: The Time Traders is a science fiction novel by American writer Andre Norton (pseudonym, née Alice Mary Norton), the first in "The Time Traders" series.  It was first published in 1958, and has been printed in several editions.  It was updated by Norton in 2000 to account for real world changes.  It is part of Norton's Forerunner universe.

I Love My Dog: "I Love My Dog" is a song written by Cat Stevens, and was his first single (b/w "Portobello Road"), appearing the following year on his debut album "Matthew and Son".  Stevens later acknowledged that he had essentially written the lyrics to the music of American jazz multi-instrumentalist Yusef Lateef's "The Plum Blossom", from his 1961 "Eastern Sounds".  Yusuf indicated that he "told Yusef Lateef about it, gave him a big cheque, and in fact, started paying him royalties."  The song is now released with credits that include Yusef Lateef.

Portobello Road (song): "Portobello Road" by the Sherman Brothers is a song, specifically a waltz (3/4) about Portobello Road in London, England (Set in the 1940s).  It was written for the 1971, Walt Disney musical film production "Bedknobs and Broomsticks".  It is sung by David Tomlinson about a street where, to this day–

Plague Ship: Plague Ship is a science fiction novel by author Andrew North (pseudonym of Alice Mary Norton, also known as Andre Norton).  It was published in 1956 by Gnome Press in an edition of 5,000 copies.  The book is the second volume of the author's Solar Queen series.

Honest Jon's: Honest Jon's is an independent record shop based on Portobello Road in Ladbroke Grove, London, operating since 1974.  The shop is owned and run by Mark Ainley and Alan Scholefield, who took over from one of the original proprietors, "Honest" Jon Clare.  Their record label of the same name is run in conjunction with Damon Albarn, who has been quoted as saying: "I don't really like the term world music.  Wherever it comes from, it's all just music, isn't it?  Hopefully that's what Honest Jon's is about - to open a few minds to what's out there."

Mary Norton (author): Mary Norton, or Kathleen Mary Norton "née" Pearson (10 December 1903 – 29 August 1992), was an English author of children's books.  She is best known for "The Borrowers" series of low fantasy novels (1952 to 1982), which is named after its first book and, in turn, the tiny people who live secretly in the midst of contemporary human civilisation.

Bedknobs and Broomsticks: Bedknobs and Broomsticks is a 1971 British-American musical fantasy film produced by Walt Disney Productions and released by Buena Vista Distribution Company in North America on December 13, 1971.  It is based upon the books "The Magic Bedknob; or, How to Become a Witch in Ten Easy Lessons" (1943) and "Bonfires and Broomsticks" (1945) by English children's author Mary Norton.  The film, which combines live action and animation, stars Angela Lansbury and David Tomlinson.

Pepe Jeans: Pepe Jeans London is a denim and casual wear jeans brand established in the Portobello Road area of London in 1973, and based in Sant Feliu de Llobregat, Spain.

Vinyl Solution: Vinyl Solution was a record label of the late 1980s and early 1990s, the offshoot of an independent London-based record store based at 231 Portobello Road (now known as Intoxica Records).  The label signed many unconventional acts in a number of uncompromising genres, such as skatepunk thrash band The Stupids, Britcore rappers Gunshot, and Bomb Disneyland.  The label had its biggest success when one of the label's techno-dance groups, Bizarre Inc, made the UK Pop charts with the song "Playing with Knives".

Kensington Housing Trust: Kensington Housing Trust is a charitable housing association established in 1926 which operates in West London.  The Housing Association currently maintains and owns around 2,500 homes in and around Kensington.  The main offices of the organisation are based on Portobello Road, London.

Supporting paragraphs: Portobello Road (song) Bedknobs and Broomsticks
Answer: Bedknobs and Broomsticks