With all the switcheroos in release date changes hopping around the studios at the moment, it’s perhaps no surprise to find that Disney will plug their Chicken Little-missing summer slots with their British-made computer animation movie Valiant. The Film Jerk website lists the film, produced by Ealing Studio-based Vanguard Animation in a partnership Disney hopes will groom the “new Pixar”, as being released in the US on April 15 2005, on more than 3000 screens.