My initial problem with ROTR was because it was advertised as a movie in the first place, as soon as I got over the fact that it's not a movie I was perfectly fine with it.

It's 44 minutes long, which barely classifies as a film in the first place, and yet for some reason was advertised as a film. There are so many pacing issues in the opener that would have been solved by splitting the 'film' into two parts and fitting it in with the TV series. It just confuses people, myself included. Doing this would also remove any pacing issues I had.

Once I started to watch the TV series my pacing issues went away.