Miller then hosted the event - joined in by the Emoji characters on the barge - then led in the launching of the animated comedy's global trailer.
The Emoji Movie is not showing in Cannes, which runs from May 17 to May 28.
Miller, soaking wet after his entry from air and sea, was flanked by his wife, actress Kate Gorney, who voices the Heart Eyes character in the film. But for the star of The Emoji Movie, things did not quite go as planned.
The Deadpool actor literally sailed to Cannes in the French Riviera for his upcoming film, The Emoji Movie. TJ Miller was in Cannes on Tuesday to officially launch the film on the famous Carlton Beach on the famous Croisette.
The Emoji Movie opens in New Zealand cinemas on September 21.
The Emoji Movie is taking the Wreck-It Ralph and Inside Out approach for the world of emoji. T.J. Miller, who voices one of the main characters, parachuted onto the stage (well, he attempted to hit that mark, but didn't make it). Hidden within the messaging app is Textopolis, a bustling city where all your favorite emojis live, hoping to be selected by the phone's user.
The movie centers around little Gene (yep, Emo-Gene), his best friend Hi-5, and his other friend Jailbreak, who travel through their phone and other apps to sort out his ever-changing expressions. If nothing else, Patrick Stewart as a poop emoji should be fun. The film is directed by veteran animation artist Tony Leondis.