Well the ps3 doesn't suffer with a pause at the layer break. It does sound like either a bad burn due to high speed (although my ps3 plays almost anything) or you are using cheap media. half way through the movie does indicate that there is a problem with the layer break. I have no problems with my burn of EpIV on my ps3 (burned using Verbatim burned at 2.4 speed)
what make of DL-DVD are you using and what speed are you burning at?