To The Movies, which opened in theaters Friday.

Read at your own risk.

In fact,Teen Titans Go!

Midway through the movie, Robin walks by Batman and Superman as they film the sequel toBatman v. Superman.

Unfortunately, not everyone found it funny.

They did not care for ourBatman v. SupermanMartha joke, Horvath told EW.

That one in particular was on the chopping block for months, added Michail.

Read on below for the rest of EWs chat with theTeen Titans Go!

ENTERTAINMENT WEEKLY: This movie features a lot of musical numbers.

I pulled up a lot of songs from musicals and just studied the format.

That one was really, really challenging for me, but really fun.

But the movie allowed us to include new artists to work with us and new musicians and take time.

That superhero song took us three weeks to write.

Upbeat Inspirational Song was my favorite one.

We were surprised, I think, that he was so willing to do it almost immediately.

We told him that in the film that hed be playing a white tiger playing the keytar.

Like Aaron said, he was excited to hop on board.HORVATH:Hes a very particular craftsman, too.

It was pretty amazing to work with him.

We did this movie in record time.

In less than a year and a half, we were able to knock this out.

It was very taxing on everyone.

I think in the end it was a ton of fun.

Well get em next time.

With the movie, you cant have that sort of mentality.

Everything has to be the best possible version it can be.

I think that was a challenge for us being sausage making TV guys.

The core idea was there, but we couldnt execute it the way we had written it.

We had to go back and work that over several times.

I think it ended up being the most interesting sequence in the movie as a result.

He said Stan would be in the movie.

Would you want him in your movie?

Were like, Yeah, we want him in our movie.

You got Stan Lee in your movie, you have validated this as a comic book movie!

It was just one of those things where it was like, Oh man, hes down for this!

What was it like to meet him?MICHAIL:It was awesome, dude!

We got to go to his office, and Aaron voice-directed him.

He was just up for everything.HORVATH:He was very nice and very welcoming and super patient with us.

He was trying to fix the board and he couldnt fix it.

So we ended up having to record Stan on like a laptop.

He was awesome, man.

Nic Cage was always a wish, but marketing had other ideas.

We were lucky enough that his son Kal-El is a huge fan of our TV show.

So Nic was like, Cool, lets do it!

He only had one stipulation and that was for his son to be in the movie as well.

His son actually voices Young Bruce Wayne.

Who did marketing have in mind for Superman?MICHAIL:It was Jason Bateman.

Will Arnett, our producer on the movie, is friends with Jason Bateman.

It just kind of fell through.

To The Moviesis in theaters now.