Taylor Swift, Idris Elba, Rebel Wilson, Judi Dench, James Corden, Ian McKellen, Jason Derulo, Jennifer Hudson and more star in this first trailer for 'Cats'. A tribe of cats called the Jellicles must decide yearly which one will ascend to the Heaviside Layer and come back to a new Jellicle life. This trailer is in HD. Definitely check it out.