Rather than support a young filmmaker’s first foray into blockbuster filmmaking, Avengers director Joss Whedon took a swipe at Colin Trevorrow’s Jurassic World by calling a recently released clip “70’s-era sexist.” Now, Whedon says he regrets that comment.

Last week, MTV revealed a full scene from Jurassic World, which showed the relationship between the characters played by Bryce Dallas Howard and Chris Pratt. A day after it was posted, Whedon retweeted The Mary Sue’s Twitter post.

“We’re too busy fanning ourselves to talk more about Chris Pratt in this,” The Mary Sue wrote.

Whedon added, “...and I'm too busy wishing this clip wasn't 70's era sexist. She's a stiff, he's a life-force - really? Still?”

Whedon spoke about the tweet with Variety at the Avengers: Age of Ultron premiere this week.

“I shouldn’t have tweeted it,” Whedon said. “I don’t ever say things about other people’s work that are negative. That’s bad form. It’s not what a gentleman would do.”

Whedon, of course, is known for projects with strong female leads, like Buffy The Vampire Slayer and Dollhouse. He also used Scarlett Johansson’s Black Widow character pretty well in the first Avengers movie.

Trevorrow, though, is a bit of an unknown. Jurassic World is his first big studio feature and only his second feature overall. His only previous directing credit is the acclaimed indie Safety Not Guaranteed, which starred Aubrey Plaza and Jake Johnson.

Jurassic World opens on June 12. Age of Ultron hits theaters on May 1.

image of Joss Whedon courtesy of Jennifer Graylock/INFphoto.com