Having read the less-than-satisfied reviews from people who took the train across from Copenhagen to Malmo, we decided we would have to take the bus if we wanted to get any feel for the bridge. We took the Graahundbus (number 999) which leaves the eastern flank of Copenhagen Central Station and arrives at Gustav Adolf Trog in the absolute heart of Malmo just over an hour later. Yes, the train does it in half the time (and at about 90kr is only marginally more expensive) and is infintely more frequent, but you see nothing of the bridge. From the bus you get a good feel for the tunnel that takes you out of Denmark and the sensation as the roadway lifts out of the ground and up onto the isthmus which eventually falls away as you join the bridge proper. In fairness it wasn't quite as impressive as I thought it would be (the Vasco da Gama in Lisbon is better) and I got rubbish pictures through the grimy bus windows, but at least I felt I witnessed it properly. We came back on the train and certainly would have been disappointed if that had been our only way across.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.