The acclaimed film critic and SensaCine director prepares the premiere of his next “A Quemarropa”, along with an exclusive interview he will do the following day in London. How did you go from being a chemical engineer to a film critic? From a very young age, I knew I wanted to be a film critic. With the money I earned from my first job, I would spent it on movie books, or ‘VHS’. Then, I would pick up…