The two stars continued filming their kid-friendly project Teenage Mutant Ninja Turtles this weekend in New York City.
At one point, the costars took a break from the battle between aliens and ninja turtles and were seen laughing and chatting with crew members.
Meanwhile, Arnett looked comfortable with denim jeans, shades and his ID badge.
We still have a long way to go before we get a glimpse of the two costars with their half-shell friends. Teenage Mutant Ninja Turtles isn't slated for release until June 2014.