Adapted from J.K. Rowling's third novel, this family fantasy adventure story finds Harry Potter (played by Daniel Radcliffe) and his best friends Hermione (played by Emma Watson) and Ron (played by Rupert Grint), facing the dangerous convict Sirius Black (played by Gary Oldman). Sirius Black has escaped from Azkaban Prison and is said to be on his way to Hogwarts.