Animals are always a great subject to get pupils talking, and the film trailer for The Secret Life of Pets has great humour too.
The teaser trailer for The Secret Life of Pets is perfect for introducing or revising lots of everyday vocabulary — animals, rooms in the house and household items like the TV, remote control, windows, armchairs, etc. There is little dialogue, and you could always play it without sound if you think it will be distracting.
The little mini-scenario in the middle with the cat trying, and failing, to resist eating a roast chicken in the fridge is perfect for working on hypotheses, going to, and ultimately the preterite. Plus some food vocabulary.