What if a movie trailer had filters and huge neon text, and was set to, say, a Dua Lipa song? What if it was made by a teenager in the Philippines, or Brazil, using pirated material? What if the plot ...

Hollywood studios are rethinking how they promote movies—and this time, they’re turning to TikTok for inspiration. Fan-made edits on the app, often filled with colorful filters, flashy text, and ...