The role of Groot -- who is not expected to be very talkative in the upcoming Marvel movie -- seemed like an odd choice for such a relatively high profile actor as
Fast And Furious star Vin Diesel, but it seems that he may have accepted the role because he was eager to work with Marvel but was simply too busy for anything more substantial!
"I’m so busy," Diesel explains to the LA Times.
"The audience wanted Vin and Marvel, Vin and Marvel. But I’m too busy to do a six-month role. So what Marvel came up with was really interesting. … I am watching a social wave influence and in some ways guide their thinking." But what about Groot caught his attention specifically? Diesel says that not always wanting to go for the obvious choice, he picked a role that he found "interesting and inspiring", and plainly states that he's an actor and can "do whatever the [frick] I want". He also addresses the teases he's been posting on social media, and the rumor that Marvel were not very happy with him letting the cat out of the bag.
"The last thing they are is mad," he reassures.
"I’m pretty open, but I have been secretive about this. I went to Comic-Con and I got blasted while I was on the Hall H panel for Riddick. Someone asked a Marvel question. I couldn’t say anything because of that secrecy." More at the link below.