Review aggregation website Rotten Tomatoes gives the film a score of 99 % , based on reviews from 136 critics , with an average rating of 8/10 , with the site 's consensus : `` Bolstered by a strong performance from Matthew McConaughey in the title role , Mud offers an engaging Southern drama that manages to stay sweet and heartwarming without being sappy . ''
Mud has a score lower than 99 % on Rotten Tomatoes , based on more than 140 reviews .