By Mandi Bierly
February 09, 2010 at 09:23 PM EST

Couples Retreat, the directorial debut of A Christmas Story star-turned-producer Peter Billingsley (Iron Man, Four Christmases), hits DVD and Blu-ray today. Below, a peek at three of the extras: a deleted scene in which you find out what would’ve happened had the guys turned left on the island (watch it till the end for some nice Jon Favreau moments), extended therapy sessions (sadly, we couldn’t actually post the funniest bits John Michael Higgins improv’d about Vince Vaughn’s characters “great, giant priapic member”), and a look at the cast and Billingsley in a private class researching which real tantric yoga poses would provide the best sight gags on film. If you only have time to watch one clip, that’s it.

Here, Billingsley provides EW with commentary:

On why he enjoyed thrusting his bum in Jason Bateman’s face during that yoga class: “I’ve known Jason Bateman for years. In fact, I’ve known him the longest of anyone. I did an episode of Little House on the Prairie with Jason when I was about 9 years old. We go back a long way. In that particular episode, I had a speech impediment, and his character laughed at me and made fun of me. So I think that was payback almost 30 years later.”

On Higgins’ ability to break Vaughn: “Vince is serious about comedy. He’s the funniest guy on the planet, but his approach is we learn it, we work hard, and we do it. We shouldn’t have set laughs. John Michael Higgins can break up Vince like nobody else. He’s the only person I’ve ever seen who can really make Vince go. People ask about improv. It’s understanding the intention of a scene or the intention of a moment, and then it’s a different way of saying it. It’s not just making a full left turn. There’s no one better than John Michael Higgins at understanding that, and he totally knew Vince’s character, so he just started railing on him.”

On the deleted scene “Don’t Go Left,” in which Favreau, Vaughn, Bateman, and Faizon Love end up in a gay bar: “That was the hardest one to let go. We made Jon do a lot of takes of the dancing. Then Vince hopped up there and did some with him, too.”

On whether he was shocked that the film was not nominated for a visual effects Oscar for its CG sharks: “Yes, I was shocked and somewhat appalled and have already written a letter. But I will tell you one thing, we were shortlisted for A R Rahman’s original song “Na Na.” [True. Rahman won two Oscars for Slumdog Millionaire.]

On the last awesomely bad movie he got sucked into on cable: “I am a sucker for The Bodyguard with Whitney Houston and Kevin Costner. There’s a few movies that if I encounter them on cable, I have that feeling of Oh boy, I know I’m not going to bed now. I’ve been a fan of that movie for a long time. I think there’s a lot of value in that, and I request that fans check out that film again.”