Okay,
I've uploaded a new binary which contains donny's requested change, which is to create a movie with the original loop even if snapshots are created all the way to -maxmovielength when -movieloops 3 is selected.
When testing I also hand-tweaked a few loops for Silver:
zookeep,2774,5491
startrek,2,3923
mario,26,2816
gorf,9,2730
frogger,93,5240