<ul><li>Elon Musk posted a picture on Twitter on Sunday, showing someone watching TikTok on their phone while supposedly watching Christopher Nolan's movie "Oppenheimer" in a packed cinema hall.</li><li>Elon's caption read, "This Oppenheimer movie is way too long." The movie's runtime is 3 hours.</li><li>It's not clear if Elon Musk has actually watched "Oppenheimer" or if he was just joking about the length of the movie.&nbsp;</li><li>The picture he shared seems to be a cropped version of another Twitter user's post, @ericzhu105, who humorously mentioned being robbed of ad revenue by Elon's repost.</li></ul>

Elon Musk posts picture of viewer surfing TikTok during an Oppenheimer show

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