I work for a small film company.How can I advertise/create a buzz on the internet without spending much money?

I work for an independent film company called Newlightfilms. We have spent alot of money advertising our film (which has a limited release across the UK on Feb 9th 2007). One area we have neglected is the internet (mainly because we dont have the experience or knowledge of internet marketing). We want to creat a buzz around the film./company. How do you think we can get people to go to our website? (www.newlightfilms.com) without spending much (if anything). Thanks!