Complex sentence: Arnold saves the lady by using his noose as a harness and the film ends happily, shortly after which the scene cuts to shot of the films stage, with film crew dismantling the scenery after the end of shooting.
Split into simpler sentences: Arnold saves the lady by using his noose as a harness and the film ends happily. The scene cuts to shot of the films stage, with film crew dismantling the scenery after the end of shooting.