Paul McCartney produced the sessions, although he did not play or sing at all on the album, and all arrangements were by Richard Anthony Hewson, who was asked to work on the orchestration before Ram had yet been released.

"[7] In 1990 Paul McCartney also admitted to Palmiere, via an autograph request, that he was indeed Clint Harrigan – the liner notes writer for Thrillington and Wings' Wild Life album.

The first person to reveal the identity of Clint Harrigan was John Lennon, who stated as much during a well-publicised letter feud with McCartney in Melody Maker ("And your writing inside of the Wings album [Wild Life] isn't exactly the Realist is it?")

[8] The full story of the Thrillington album was told in detail in 1995 in Beatles fanzine Good Day Sunshine[9] and in music journalist Ian Peel's book The Unknown Paul McCartney (Reynolds & Hearn, 2002).

Peel tracked down various musicians who brought McCartney's vision to life – including Richard Hewson, Herbie Flowers and the Mike Sammes Singers – as well as those that were involved in creating its mythology.

[10] To coincide with this release, McCartney started a Twitter account under the Thrillington name, posting tweets in a manner similar to the original newspaper announcements.