If you can't believe a little in what you see on the screen, it's not worth wasting your time on cinema.
From as young as I can remember, I always wanted to be a singer... My mum taught me 'Going Down the Garden to Eat Worms' for a competition when I was about 4.
If I know you're very good in music, I can predict with just about zero accuracy whether you're going to be good or bad in other things.