text: """
  Generate a movie from atom-by-atom proposal PMF and placement PDB files.
  Run with `run movie.py` in PyMOL
  """
  
  iteration = 6
  
  from pymol import cmd, movie
  #cmd.mclear()
  #cmd.mset('1')
  cmd.set('sphere_scale', 0.02)
  cmd.rewind()
  cmd.delete('all')
  cmd.load('geometry-%d-forward-proposal.pdb' % iteration)
  cmd.hide('all')
  cmd.show('spheres', 'name Ar')
  cmd.spectrum(expression='b', selection='name Ar', palette='blue_white_red', minimum=0, maximum=6)
  cmd.load('geometry-%d-forward-stages.pdb' % iteration)
  nframes = 30
  specification = ''
  for i in range(15):
     specification += '%d x%d ' % (i, nframes)
  cmd.mset(specification)
  frame = 0
  for i in range(15):
      movie.rock(frame, frame+nframes)
      frame += nframes
  