According to The Times, Now On The Big Screen: The Unofficial And Unauthorised Guide To Doctor Who At The Cinema details the numerous unsuccessful attempts to make a Doctor Who film through the programme's history.

In one chapter, its author Charles Norton claims that Jackson was the preferred choice for a lead role in a big screen version of the BBC TV show by Paramount bosses in 1988, off the back of his film Moonwalker.
Apparently, Bill Cosby was also in mind for the role had Jackson declined the offer.