Get Mads Mikkelsen and a lawyer to go to the Embassy and on film ask Assange what happened with those two women; then go to Sweden and interview the women. Broadcast the film and ask the Swedish government to charge him, or not. If they will not charge him, ask Bob Carr to ask David Cameron to let him go.
If he won’t, get Kenneth Branagh to go through the same process, and ask Cameron again.
Then Benedict Cumberbatch. Then Dan Craig. Then Michael Moore.
Do it until the Cameron government falls.