here's a nifty way to create a cool looking wormhole effect using Apple's Motion.
click the above movie to see the final effect. note you can change the speed a look to fit your own custom wormhole effect.
Step 1:
Import your footage and make 2 groups: background and wormhole effect.
Import your background footage into the background group.
Step 2:
Ok now go to the Library tab and click on Generators, then Cellular.
Cellular creates an animated pattern that looks like bacteria or cells.
Now apply that generator to the wormhole effect layer.
Step 3:
Now go to the Inspector tab and let's adjust the settings for the cellular to give us the effect we want.
Now expand the options for Gradient and move the mid range slider closer to the black color.
Or you could manually input the value you want into the Location field. I find 25% looks nice, you really want to go for a nice contrast between the black and white points.
Step 4:
Alright now go to the Add Filters menu and select Stylize, then Slit Tunnel.
Then take drag the Perspective slider all the way to the left. Now it looks more like a rippling pond.
Now need to position the center where we want the wormhole to open. To do this you might want to take the opacity down to 50% to see where the center will line up with your footage.
Now bring up the Glow to about .30
Now on to part 2