Not far off there mate

if I was to type how I speak you lot would have a chuckle
@Azza Cabot has a nice cinema and a few restaurants you could spend abit of time in there and do some shopping. You could also head over to the water front near @ Bristol for the football on a evening, There's always bars there with the football on
Oh my word, someone's coming to Bristol and Cabot is your suggestion for food?!?
Bristol is an awesome city, full of independents on your doorstep.
Place to watch Champions League / Europa League: I would head to King Street Brewhouse, it's a stones throw from Queen Square. Always busy but good vibes/no chavs and good beer plus plenty of screens and a big projector in the main bar and downstairs.
Odeon or Showcase: Showcase is at Cabot, otherwise it's full of chain restaurants and shops.
Burgers: Oh my lord, so many.... Burger Theory, Three Brothers and Squeezed are all epic and within a 5 minute walk.
Drink? Small Bar looks good: Yep Small Bar, equally anywhere on King Street. There's ~15 pubs (including King Street Brewhouse above) on that stretch, all good, all something different. Kongs has retro arcade games, Beer Emporium is an underground cellar, The Old Duke has live jazz at a weekend. The King William is the cheapest (Sam Smith pub), and it's next door to the most expensive (The Royal Naval Volunteer). You'll want to crawl them all.
Indian: The Raj on King Street is good as well. Not too many other good ones in the centre.
S.E. Asian: Quite a few round there. Sticks & Broth, Pho (argh a chain... spit!), Wokyko spring to mind.
Great eateries in general: SO many... you'll have to be more specific with food type! Definitely head over to Wapping Wharf/Cargo, quite a few bars and restaurants etc in cargo containers. All independents/local places. St Nicks market for lunch in the day, about 20 independent stalls there.
Can give you plenty of other suggestions depending on what you want and if you want to venture more than a 10 minute walk from where you're staying. I presume you'll only be free in evenings? Where's your conference?