Cosplayers attend the Comic Con Portugal in Lisbon, Portugal, Sept. 12, 2019. The four-day event kicked off here on Thursday. (Photos: Xinhua)

A character of Star Wars is displayed at the Comic Con Portugal in Lisbon, Portugal, Sept. 12, 2019. The four-day event kicked off here on Thursday.

Comic figures are displayed during the Comic Con Portugal in Lisbon, Portugal, Sept. 12, 2019. The four-day event kicked off here on Thursday.

People take pictures inside a dinosaur figure during the Comic Con Portugal in Lisbon, Portugal, Sept. 12, 2019. The four-day event kicked off here on Thursday.