Compact 1911 - Need ID

[PistolJunkie]

I'm trying to ID this particular Compact 1911 model, but I can't seem to find anything that's a close enough match. Anyone have any ideas? Note the safety and accompanying groove as well as the recoil spring plug. Those are the parts that seem to be making this difficult for me. Is this some obscure model, or is it already listed on the 1911 page and I'm just missing it completely?

For reference, the movie was made in 1979.