The Oscar-winning filmmaker Alex Gibney has sold a majority stake in his Jigsaw Productions to the philanthropist Wendy Schmidt.

Meta’s Instagram and Google’s YouTube are getting ready to welcome TikTok users, as the Supreme Court upheld a law that effectively bans the Chinese-owned app from the United States.

After visiting President-elect Donald J. Trump in November, Mr. Zuckerberg decided to relax Meta’s speech policies. He asked a small team to carry out his goals within weeks. The repercussions are just beginning.