Although Marvel and DC movies for the most part do extremely well at the box office, it's common for directors to helm one project and not do the sequel.

Kenneth Branagh, who has had an illustrious acting and directing career, was the behind-the-scenes head of 2011's "Thor." Despite the film's critical and box office success (it grossed more than $181 million), Branagh opted to walk away from the franchise.

Although Marvel Studios chief Kevin Feige was heavily involved in the casing for "Thor," Branagh said in a recent episode of the interview series "The Hollywood Masters," that is not why he chose to leave the series.

"It was a long time [making the first film] and they were way too quick for me to get straight back into another," Branagh said. "[But] it was a pleasurable experience and a film I'm very proud of.

"Kevin is a muller, he goes away and he thinks When we came to cast the two boys, Chris Hemsworth and Tom Hiddleston, that was a long process. And even on the morning in which we made the calls, we came in, and I remember Kevin wandering around this tiny little conference table. It's just me and him and one of the executives on that Saturday morning.

"I'd already booked a call to Hemsworth and to Hiddleston - and he still wasn't sure whether we were going to go with this. I kept saying, 'It's these guys. It is these two guys. Chris Hemsworth is Thor. Tom Hiddleston is Loki. You're going to be OK.' And he knew it. We made the call and it was lovely, but it takes a long time to do it. Working with Kevin is very, very enjoyable. I regard him as a very, very dear friend, [but] that process is very unusual."

Check out the entire video interview, which includes information on Branagh's upcoming project "Cinderella" and his love for Shakespeare, below.