Windows 7/Vista/XP PC (32 or 64 bit)
Processor: Intel Dual Core 2.0GHz or equivalent processor (AMD Sempron @ 2.4 GHz)
2GB System RAM
6GB free HDD space
Direct X 9.0c compliant video card with 512 MB of RAM
If your laptop has them, then you should be able to play it, but at low settings (and probably without the HD pack).
Do you know the specs of your laptop? CPU, GPU, RAM ?