Yes, this comedy about a sad-sack, has-been boxer is painfully predictable and manages to include every cliche of the genre, but executive producer and star Adam Carolla keeps it rolling along with his trademark, deadpan rants.
So many movies these days are overworked or overblown: The Hammer feels genuinely tossed-off. It isn't a great movie, or even a consistently good one. Yet it gets to elusive feelings about failure and success, hope and mortality.
Carolla has a tendency to riff when he should be acting, and the whole project is rambling and disorganized. At the same time, though, The Hammer also has dry wit and unforced working-class swagger, and hits some surprising emotional notes.
If you liked Rocky Balboa you should be in good shape, since it's exactly the same movie, just aimed at a teeny-tiny-bit younger demographic and with an affectless leading man who avoids hambone acting by not acting at all.