I have very fond memories of this. The BBC Radio 4 metafictional drama, The Trial Of Superman, created to celebrate the character's fiftieth birthday. In which Superman himself is put on trial, prosecuted by Lex Luthor for crimes against humanity.
Amongst those called to the dock, as well as fictional characters including Lois Lane, Superman himself and Batman, were the real life Adam West, Jenette Kahn and Dave Gibbons who testified on Superman's behalf.
And the BBC are to rerelease this drama on CD, remastered and specially extended in the US in July.
The drama was written and produced by audio master Dirk Maggs, also responsible for other Batman, Superman and Judge Dredd radio dramas as well as the UK Independence Day spinoff, the third, fourth and fifth series of The Hitch Hikers Guide To The Galaxy and the Dirk Gently radio series.
Any Superman fans, this should be an essential purchase.