Recently watched The Life and Death of Peter Sellers on the BBC iPlayer. It wouldn't make my top ten list of films, I was drawn to it, as I am to biographies—be they in film or book form that explore a person's life.
It is certainly a worth watching, particularly if, like me, you had little to no prior knowledge about his personality outside of his on-screen persona. I appreciate it's poor form to speak ill of the dead, but assuming the film provides a reasonably accurate portrayal of the man, the conclusion is that he was, by all accounts, an utterly vile and unpleasant individual. The film paints a picture of a man whose genius was intertwined with profound psychological issues, resulting in general human awfulness.
Along with a relationship with his mother which seemed very unhealthy, almost Jambo family like, if you catch my drift.