Alan Rickman's 'secret journals' are shedding new light on why he continued his role in the Harry Potter movies while battling prostate cancer.
The actor died in January 2016 in London at age 69 after quietly fighting the disease, which he was first diagnosed with in 2005. Shortly after the diagnosis, he "finally" agreed to return to film Harry Potter and the Order of the Phoenix in which he famously played Severus Snape.