Anna Kendrick Reveals the One Thing Justin Timberlake Is Not Good At

Trolling him! Anna Kendrick poked fun at her Trolls costar Justin Timberlake — and his lack of social-media skills — during an appearance on The Ellen DeGeneres Show on Wednesday, October 26. Hear what she said in the clip above!

It turns out that the former boy bander, 35, isn't exactly up to date with the latest technology. "I saw him trying to stumble through figuring out social media when we were on our press tour," Kendrick, 31, explained. "There was a point when I think someone explained Instagram Stories to him and he was on the red carpet and I was like, 'The camera is facing the wrong way. I know you just had a kid, but you are immediately, like, the ultimate dad.'"

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Anna Kendrick visits 'The Ellen DeGeneres Show' on Oct. 26, 2016. Michael Rozman/Warner Bros.

Timberlake and wife Jessica Biel welcomed son Silas, now 18 months, in April 2015. According to Kendrick, the actor is like a kid himself when it comes to 3-D movies.

"He's also really into the 3-D version of Trolls," the Pitch Perfect star told DeGeneres, 58. "I hadn't seen it and he was like, 'It's like it's coming at you!' And I'm like, 'Are you a time traveler? I know what 3-D is.'"

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Justin Timberlake and Anna Kendrick attend the opening gala of the annual 69th Cannes Film Festival on May 11, 2016. Samir Hussein/WireImage.com

Kendrick and Timberlake grew close while filming the animated flick. They even recorded a version of "True Colors" for its soundtrack together. "It will be a career highlight for me," she said. "He's very good at what he does."

She joked: "When it comes to music, he kind of knows what he's doing."

Watch Kendrick and DeGeneres in the video above!

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