Emilia Clarke and Jason Clarke are portraying Sarah Connor and John Connor in the movie, which will be directed by Alan Taylor.

The movie has been rigorously testing actors for all parts including that of Reese, the hero who in the original travels to the present to save Sarah Connor and ends up fathering future human resistance hero John Connor.

The role came down to Courtney and Boyd Holbrook, with Holbrook even testing twice.

Courtney played a key role in TV’s Spartacus and played Bruce Willis’ son in A Good Day to Die Hard. He’ll next be seen in YA adaptation Divergent. He's repped by UTA.