This week on Filmish with Seann Walsh and Mark Simmons, we speak to Chronicles of Narnia actor Georgie Henley about her new play. She shares her worst films of all time, which include Grease and Watership Down.   Seann and Mark also stumble through film reviews of Three Billboards Outside Ebbing Missouri and Darkest Hour, so you will not want to miss this week’s episode if you are thinking of heading to the cinema this weekend.