 The beginning of production was postponed for nine months, due to  Arnold Schwarzenegger (qv)s commitment to  _Conan the Destroyer (1984)_ (qv). During this time,  James Cameron (I) (qv) wanted to be working but didnt have the  time to do a whole other film so he took on a writing assignment,  this turned out to be _Aliens (1986)_ (qv).