I've done the EWR round trip a few times and can vouch that's a lot of movies and champagne! They've just launched the all business class 345 on that route too. Taking off from SIN you feel like you are going to drive there - the acceleration is not great! Losing a day airborne is quite a strange concept.
I did the LAX-SIN route this year and although a bit shorter (about 14 hours) it was equally bizarre spending the whole flight at night and losing a day too. It was particulary depressing to watch us overfly Brunei at 0300 in the morning on the skymap, knowing that I still had 2 hours to SIN, then would have to wait for the 0900 flight back to Brunei.