I wanted to like Dumb and Dumber To a lot, and while I think there are some legitimately hysterical moments, as a whole the film just doesn't work very well. Dumb and Dumber is one of my all time favourite comedies, alongside Anchorman. I'm not sure what that says about me, but I don't care. I love them and have watched them both numerous times. We recently got a sequel to both these films, and while Anchorman 2 was an absolute blast from start to finish, Dumb and Dumber To is an occasional blast, with more than a few not so entertaining moments.
Jim Carrey and Jeff Daniels are great at reprising their roles. Carrey's last few roles haven't been up to stretch with some of his classics. A few of them are watchable, but for the most part, they're all a little underwhelming. Seeing him return as Lloyd is just as entertaining as you'd want it to be, but it's Jeff Daniels who comes as the biggest shock. I don't watch The Newsroom, but Daniels has drifted away from comedy ever since Dumb and Dumber. To my surprise, he gets straight into character, pulling off the dumb no other actor could pull off. Except maybe Jim Carrey.
To sum up, Dumb and Dumber To is a fairly mixed bag in terms of the laughs. There's a dull initial thirty minutes, a hysterical second act and then an underwhelming and unfunny third, full of characters that really bring the film down.