I have had two LOVEFiLM | DVDs, Blu-ray and Games rental VIP invites worth two months free (£37 total). There is no commitment; you do need to provide debit card details but can cancel before the end of the trial. They will also enter you in a £5,000 cash draw.
If you're not familiar with Lovefilm have a look at the site. They must be used by mid-September, if you'd like one let me know.