When they came across videos on TikTok of people crying after they watched “We Live in Time,” a new romantic drama starring Florence Pugh and Andrew Garfield, Carmen Wells and her five roommates decided to watch the film.

After the screening, “We were the last ones in the movie theater, sitting on the floor, sobbing,” said Ms. Wells, 19, a student at the University of North Carolina Wilmington.

Thinking that their reactions were amusing, and wanting to encourage others to see the movie, Ms. Wells made her own video.

“This is me before ‘We Live in Time,’” Ms. Well says in the video, looking composed and casual in a hoodie and glasses. A few seconds later, a shaky hand captures Ms. Wells walking on the street, sobbing as she cries out, “He loves her so much!” Another few seconds pass, and Ms. Wells is holding the camera again. She turns it toward herself. “This is me,” she says through tears.

The video, which she posted last week, joined a wave of “crying selfies” that fans of “We Live in Time” have created in response to the film’s heart-wrenching story about love and loss. Crying selfies, which have gained traction in recent years thanks to posts by celebrities like Justin Bieber and Bella Hadid, are photos or videos usually shot in response to overwhelming stress or to an emotional crisis like a breakup. But in this new iteration, the videos are endorsing an experience: Go see this movie if you want a good cry.

The TikTok call has been heard: Eighty-five percent of the people who saw “We Live in Time” were under 35 years old, according to Deadline. A24, the film’s production company, has leaned in, distributing branded tissue packs at select screenings on opening weekend.