LONDON -- Having trouble picking out a movie when you go to the video rental store?

If so, maybe your nose can help.

A chain of British video stores said it's using aromatherapy to help customers choose movies.

The idea is that different scents would summon up different kinds of movies.

For example, there's a faint smell of gunpowder for action films or the scent of roses for romance. And for comedies -- the smell of bananas.

Vanilla is being used to entice customers to buy a snack.

The scents are contained in a capsule fitted in air conditioning units.

Blockbuster Video is testing the idea in London and two other cities.