Benedict Cumberbatch has revealed he is "notoriously bad" at time-keeping.
The Sherlock star, who previously admitted he was late for a meeting with War Horse director Steven Spielberg, admitted that being punctual is not one of his strongest points in an In Conversation discussion with The Hollywood Reporter.
"There are parameters you have to work within as an actor, and sometimes they are difficult to maintain. Time-keeping is one of them and I'm notoriously bad at that," he said.
"And learning your lines. I'm alright at that some of the time and sometimes it can get overwhelming. There are good days and bad days."
Benedict - who has starred in Oscar-nominated films August: Osage County and 12 Years A Slave - revealed he had to avoid bonding with his Star Trek Into Darkness co-stars Zachary Quinto and Chris Pine, as he focused on preparing for a scene.
"There are certain days where you have to do that. I couldn't play Scramble With Friends with Zach and Chris, I had to go into my corner and think about my s***... Sometimes you have to build a little bit of a cocoon of concentration," he recalled.
The 37-year-old, who joked about his "weird face - somewhere between an otter and something people find vaguely attractive", also revealed why he chose not to go to star in a Broadway production of After The Dance.
"It was a very selfish decision because it affected a lot of other people. I just wanted to mix it up all the time," he said.
"I felt like I had that experience and selfishly, I felt I wanted to make some capital out of that momentum that was building and I'm glad I did. It worked out well for me. I took a gamble and it paid off."