movie - plays a movie
mvClear - see descriptions below

mvMove
mvMove(frames,axis,totalDistance) - moves the environment over the given
       frame range, the moved distance summing up to the totalDistance given.

mvRot
mvRot(frames,axis,totalAngle) - rotates the environment over the given
       frame range, the rotation angle summing up to the totalAngle given

mvCxRot  (DOES NOT WORK???)
mvCxRot(frames,Xangle,Yangle,Zangle) - Rotates the scene gradually
       over the three axes, corresponding to Euler angle rotations;
       For the end scene, consider rotation first around z-axis, then
       around y and finally around x.

mvSet
mvSet(frames,variable,startValue,endValue,selection) - lets a variable go through a gradient in the specified frame range. Great for fading effects!

mvCmd
mvCmd(frames,command) - executes a command in all frames specified.

mvGradCol
mvGradCol(frames,selection,tmpc,R1,G1,B1,R2,G2,B2) - changes colour
    gradually from (R1,G1,B1) to (R1,G1,B1) through the specified frame range
    and on the specified selection.

mvSinrot
mvSinrot(frames,axis,totalAngle) - rotates the environment over the
       given frame range, the angles summing up to the totalAngle given.
       The incremental steps will be calculated with the sinus function to
       make the rotation smoother.

mvSinmove
mvSinmove(frames,axis,totalDistance) - moves the environment over the given
       frame range, the moved distance summing up to the totalDistance given.
       The incremental steps will be calculated with the sinus function to
       make the movement smoother.

mvSinset
mvSet(frames,variable,startValue,endValue) - lets a variable go through
    a gradient in the specified frame range. Great for fading effects!
    The incremental steps will be calculated with the sinus function to
    make the movement smoother.

mvBG
mvBG(frames='1',R1=0.0,B1=0.0,G1=0.0,R2=0.0,G2=0.0,B2=0.0,):
    """
    mvBG lets the background colour fade from RGB1 to RGB2. Isn't that a nice feature

mvSinBG
mvSinBG(frames='1',R1=0.0,B1=0.0,G1=0.0,R2=0.0,G2=0.0,B2=0.0,):
    """
    This does essentially the same as the one above, but uses the gradual
    transition as the other mvSin* commands. Even better! :) (Why would you
    ever need this?)

mvMorph
mvMorph(frames='1',source='',target='',filename='morph_script.pml'):
    """
    Atoms from source selection one will be _alter_ed to be on positions from
    target atoms at end time. This is very time consuming! It writes and uses
    an external script which is read every frame, since the list of commands
    will be very long usually.

movie.tdroll 1,360,0,0,2
     (frame start), (x deg roll), (y deg roll), (z deg roll), (deg/frame)
     3-dimensional rolling (each axis separately)

movie.rock 1, 60, 90
     (frame start), (frame stop), (angle for rock)
     Side-to-side rocking and back to center

movie.roll 10, 60
     (frame start), (frame stop)
     Sideways rolling

movie.nutate 1, 60, 90
     (frame start), (frame stop), (angle for rock)
     Rotating rocking in x,y,z

movie.screw 1, 60, 90
     (frame start), (frame stop), (z-axis in-and-out), (left deg roll), (rt deg roll)
     Side-to-side + in-and-out rocking and back to center

movie.zoom 1, 60, 4
     (frame start), (frame stop), (z-axis in-and-out % zoom)

util.mrock 1,120,30,1,1
     (start, finish, angle, phase, loop-flag)

util.mroll 1,120,1
     (start,finish, loop-flag)