Steve Carell made The Office co-star John Krasinski cry on the first day of IF

It was an emotional reunion for former co-stars of The Office, actors John Krasinski and Steve Carell, on the sets of the new movie IF. The two actors starred in the hit show for seven seasons.

Krasinski recalled that Carell made him cry on the first day of working on IF.

"When he came in, I thought I would have the best time ever, and I did," Krasinski told People while promoting the movie that they both star in and that Krasinski wrote and directed. "But the first thing he did was make me cry, which sounds sad but it was amazing."

The Office stars worked together on the NBC sitcom until Carrell's Michael Scott finally left the Dunder Mifflin workspace.

Carell and Karsinski met again and were working on the same space after years when Carell came on board as a voice cast for IF. Carell plays the animated character Blue in the film.

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Both animated and live-action, the movie is about a little girl who can suddenly see people's imaginary friends.

"He said, 'I knew you'd go on to be a writer-director,'" Krasinski recalled. "I said, 'I didn't even know that.’ He just said, 'I'm so proud of you and keep going, and I've watched everything and [I'm] cheering you on from the sidelines.' So I wept at the beginning of our VO session, and then luckily he jumped into being Blue and cheered me up. It was great."

In fact, Krasinski had always imagined his former onscreen boss as the character.

"I wrote the part for him," Krasinski said, "and had no idea that he could do it, whether scheduling-wise or whatever."

Krasinski said Carrell actually doing the movie was a big deal.

“For him to sign on was a huge boost," Krasinski said. "It felt [like] that stamp of approval from family."

IFstars Cailey Fleming, Ryan Reynolds, John Krasinski, Fiona Shaw, and the voices of Phoebe Waller-Bridge, Louis Gossett Jr. and Steve Carell.