Introduce your kids to the world-wide, magical phenomenon that is HARRY POTTER!
Harry Potter and the Philosopher's Stone (yes, Americans - I'm british like J.K Rowling: it's not Sorceror's) is the first film and book of the legendary Harry Potter saga starring Daniel Radcliffe, Rupert Grint and Emma Watson.
All children in my opinion, should be introduced to the series either in books or/and films from a fairly young age. In my opinion, the more they understand it, the more they can appreciate the plots and storylines and characters throughout the series. 7 years of age is perfect for children who can be introduced to the magical, world-wide phenomenon that is Harry Potter.
I recommend reading the book first which can be read by parents or the child - it's around 200 pages and the shortest of the book series.
For families who are anxious about introducing their kids to Harry Potter, don't worry. The film is a little scary for younger viewers but if it is watched with the parents, then I can assure you that they will enjoy the scares. The scariest aspect of the film is when Professor Quirrell unveils his turban to show the face of Lord Voldemort on the other side of his head and the three-headed dog, Fluffy.
There are a couple of uses of mild language but only the words "bloody" which young children can probably deal with.