The 'Home' singer's little boy is set to undergo treatment for liver cancer.
Kristen Stewart to star in Snow White and The Huntsman sequel
Twilight Breaking Dawn Part 2: The UK Premiere
The final instalment of the Twilight Saga is out in cinemas! Check out all the photos from the UK premiere in Leicester Square
However Rupert Sanders won't be directing the second installment of the film
The producers behind Snow White and The Huntsman have had to decide whether to keep Stewart as the film's star or Sanders as the director following their affair.
Studio bosses have clearly decided that the Twilight actress was more valuable to the film and decided to get rid of British Rupert Sanders.
Stewart and married father of two Sanders had an affair whilst they were working on the first installment of Snow White and The Huntsman.
Stewart publicly apologised to boyfriend and Twilight co-star Robert Pattinson and the pair are now back together.
The star headed straight from the jungle to panto...but clearly hadn't had time to learn her lines!