A little boy has had his dreams of becoming an actor dashed despite landing a coveted part in a massive TV ad campaign - because his school refused to let him have the day off for filming. Ethan Solomon-Roberts wants to become a big Hollywood star and was over the moon to have beaten thousands of other children to land a part in a new advert for Sainsbury's 'Back to School' campaign. But the six-year-old is now devastated after his school banned him from the taking a day off for filming, because he missed out on his debut part.Fuming mum Janet Roberts, who is a teacher herself, blasted Oakhill Primary School in their home town of Woodford Green, north London, after they denied the blond starlet the day off. The 42-year-old says the school would have happily let little Ethan have a day off it was for a sporting activity, but are refusing to indulge his acting hobby - which he hopes will one day land him a part in a Star Wars film.