"I think the character does tend to suit an episodic thing, because what's fun about him is that he doesn't care about anyone else, and it's very difficult for a main character - a lead character - in a movie to not care about anybody else"

Rowan Atkinson's quote suggests that the character he is referring to is better suited for episodic stories than a movie. This is because the character does not care about anyone else, which is a difficult trait for a lead character in a movie to have. This implies that the character is selfish and does not have any regard for the feelings of others. This makes it difficult for the character to be the main focus of a movie, as it would be hard to make the audience sympathize with them. However, in episodic stories, this trait can be used to create humorous situations and conflicts, which can be entertaining for the audience. Therefore, the character is better suited for episodic stories than a movie.