Just got it. So there are 2 entrances to that area with current. Go to the right most one. On the left side there is some stuff that you can grab onto, the orange and black plants, grab the longest one and angle yourself so you're hanging to the right of it, I think slightly below. From that position, you can let go and get your ship to the lower right of the room right against the barrier to the very right to help stop your progress and from there you should be able to get just below the jet stream. Once you hit there, you should be free to maneuver along the bottom of that area there where the camera will pan down and reveal the purple cube. The rest is easy.
I'll defend that the original movie is alright, though not very hard. Just thought it was put together well, even with the sometimes cheesy special effects. The only movie in the franchise I thought was paced appropriately as a horror film and no one had superpowers. Also, the soundtrack was great.