The clip later became inspiration for the movie poster, according to Josh Duhamel's co-star, Katherine Heigl.
And the actress says Josh Duhamel is "pissed" about the embarrassing promo, because the underwear scene wasn't in the original script and now it's the movie's most recognisable scene.
She says, "Unfortunately they threw that at him. In the movie there's a scene where he's walking around in his underwear chasing the baby and they kind of threw it in last minute because they thought it would be funny. But poor kid, he's pissed."