Use the Metro 2033 No Intro Fix.
%LOCALAPPDATA%\4A Games\Metro 2033\user.cfg
C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common
If you're running Lucid Virtu MVP, you will need to disable the control panel entirely, not just uncheck Metro 2033 from the application list.
This may be due to crouching while your companion is being dragged off the cart. Just don't do that.