Can you stay awake for more than 28 hours straight? Because that’s how long the Avenger: Infinity War Movie Marathon will last – from 7.30am on April 24 to 11.30am (approximately) on April 25. It’s the ultimate test of superhuman dedication and endurance and only the most devout Marvel fans will be up for this marvellous (pun intended) ten movie screening. You’ll come away from it…