Instructions:enter this code on the free trial page in the box marked 'Promotion or gift code?'. I just used it and it works!
For those of you who can't see the games option:
you get to:
Step 3 of 4: Choose your package
then look for:
LOVEFiLM unlimited plans
What we're famous for! No limits to how many rentals you can have. We rush the next DVD (want to rent games?) to you as soon as you send one back.
and click on the link at "want to rent games?" and you get the combined option.