“Ryan’s World the Movie: Titan Universe Adventure,” a movie spinoff from popular YouTube title “Ryan’s World,” has lined up wide theatrical releases in Canada and the U.K. to coincide with its U.S.

Ryan’s World started as a toy unboxing channel, but has evolved over the years, growing with Ryan Kaji. In addition to videos (some of which have gone to Hulu), the Ryan’s World brand has had success ...