We lost a great actor this week in Alan Rickman, of pancreatic cancer, at 69. Although many young people know him mainly for the playing the character of Severus Snape in the "Harry Potter" film series, many of us recall the masterful job he did portraying Éamon de Valera in Neil Jordan's film "Michael Collins." De Valera is one of the most complicated and controversial figures in Irish history, and Rickman did a wonderful job of bringing him to life. He will be missed. Here are some clips from Alan Rickman's performance as de Valera. "Michael Collins" also features Liam Neeson as Collins, Aidan Quinn as Harry Boland, Julia Roberts as Kitty Kieran, Stephen Rea as Ned Broy. and other actors who helped forge a remarkable ensemble.