about 12 seconds in...
"...which forces the biker to have to swerve into the middle of the road..."

WHAT???

if the cyclist in question is indeed swerving (implying sudden lateral movement without signalling and/or checking first), then that cyclist needs to go to traffic school.

about 5:30 in...
"we wouldn't be interfering with the flow of traffic that often."
bad attitude, especially coming from a cyclist.

other than those little blurbs the movie makes a convincing case at least as far as a densely populated city is concerned(sidepaths are not very effective here in the suburbs). but what happens when the cyclist needs to turn left? are these separated paths maintained to the same standard as the roads? will they increase or decrease cyclists' overall traveling speed? what about the danger of right hooks that as some people have pointed out are still present?