is probably not going to work as there is nowhere to put the video signal from the Wii into the Laptop.
What "might" be possible is that you purchased a USB TV tuner for the laptop, plug the Wii to it and tune to whatever the Wii puts out.
If the Wii only puts out a finished video signal and not a TV signal, this will not work.
You may want to consider a cheap TV.
I'm sure there are Wii owners out there that will offer other suggestions though.
I'm going to be living on campus next semester and I'll be lacking a Television. I'm curious if it is possible to connect a Wii to my MacBook Pro and use the MacBook as a screen to play my games on. If anyone knows anything about this, please let me know if it's possible, and how or what I need to buy in order to accomplish this.