Sienna and Keira are living up to the name of their latest film, The Best Time of Our Lives. The co-stars just started filming in North Wales and while it may not be sunny and gorgeous, these girls seem to be having a blast together. I can't say so much about their unfashionable looks but I will give them a break since I have to assume it has something to do with their characters' costumes. I could hardly imagine Sienna wearing that in real life. Looks like Lindsay missed out on a fun time since Sienna just took her place. Besides, LL is going to be busy covering up that coke scandal.