The on-air campaign will begin on Monday February 11 during Capital's breakfast show with DJ Johnny Vaughan and Denise Van Outen, who will invite listeners to play 'Rataclue-ey'.
Vaughan will take on the role of 'Johnny the Love Rat' via a special effects microphone that will put a rat-sounding EQ into his voice. He will offer a series of clues as to the identity of the lady he would like to be his Valentine and take on a romantic trip to Paris.
The daily prize from Monday to Wednesday will be a trip for two to Paris, including first class travel, spending money and dinner at a Parisian restaurant.
On Valentine's Day, two trips to Paris will be on offer and on Friday February 15, a trip for four friends to Europe will be up for grabs.
All the activity will be supported by live reads and pre-recorded trailers plus significant online activity, including a webpage dedicated to the movie, the promotion, DVD competitions and a themed Capital newsletter.
The deal was conceived and negotiated by GCap Media's Hannah Freeman and Steve Golding and Carat Sponsorship's Judi Philo.
'Ratatouille' features Remy, a young rat in the French countryside who arrives in Paris only to find out that his cooking idol is dead. When he makes an unusual alliance with a restaurant's new garbage boy, the culinary and personal adventures begin.
The DVD is out on Monday February 11.