"Star Wars" fans participate in the "Star Wars Day" party at Museum of Vancouver in Vancouver, Canada, May 4, 2018. "Star Wars" fans from around the world costumed in different "Star Wars" characters to celebrate the "Star Wars Day" which is observed on May 4 annually. The day was chosen for the pun on the catchphrase "May the Force be with you " as "May the Fourth be with you".(Xinhua/Liang Sen)