This is a gloriously silly film which is being blamed on Fifth Doctor Peter Davison, in which Peter, joined by Sixth Doctor Colin Baker and Seventh Doctor SylvesterMcCoy try to get themselves included in the 50th anniversary special. They even try to drag Tom Baker into it, but his appearance bears a resemblance to one he sort of made in another special some years ago.
Much silliness follows, with appearances from numerous companions, with a surprise guest appearance at the end. So far, only the trailer is on You Tube:
To see the whole thing, you’ll have to go to the BBC site:
 And Tenth Doctor’s father in law
 Allegedly AWOL from filming the Hobbit