Arthur

I liked the first half of the film for the most part, but it clumsily goes through Arthur's "maturation" in the second half, and kills any momentum it had built up, so it becomes a chore to watch for most of the last 45 minutes of the film.  The script is quite funny for the first half I liked, and I liked the main quintet of the cast (with Arthur's mom being a weakly cast part, but Jennifer Garner, Greta Gerwig, Helen Mirren, Luiz Guzman and Russell Brand were solid players). 

I give it 2.5 stars, or a grade of C+.