My experience of test screenings is that you don't know what kind of mood people are going to be in, and sometimes the studios accept what Joe Blo says - and this guy could just be a frustrated filmmaker, or not paying attention.

Tupac Shakur is something that, of course I want to make the Tupac movie, I love Tupac, but when that movie was announced, we didn't even have a script yet. It was just being written. People announce things too soon. If you go to any filmmaker - Clint Eastwood, Oliver Stone, Martin Scorsese, Ben Affleck, Michael Mann - you go in their offices and there are scripts everywhere and there's about four or five of them you really want to make.

You'll see in the movie he constantly does that-he only drinks his tea a certain way, brings his own tea bags, the guy pours hot water, it's like a consistency throughout the film, but he never breaks his habits. I mean, to a point, where he has to.

I've become friends with Michael Mann and Oliver Stone; I've seen those guys work and that was great to see.

There are many stories of people didn't set out to make a film that became a classic - the whole process was a disaster, everybody hated each other, the movie itself was a disaster, everybody thought the movie and the script was going to be a piece of crap. Look at Alfred Hitchcock and Psycho. Nobody wanted to make Psycho; it was crap to them. The only person that wanted to make Psycho was Hitchcock. Now, it's considered a classic and a work of art.

I only pay to take my son to the movies, because most of the time I only watch European movies, independent movies, or screen them privately. But I like to go to movies with my son because it's still fun; it reminds me of why I make movies.

The violence you witness is Denzel doing it and we're taking some visual effects and doing some things and you see something happen it's happening in front of you as opposed to cutting away and doing a bunch of tricks. It's in front of you. So it's hard not to make it a hard "R" if you see a guy get punched and teeth wind up in someone's knuckles.