Sumolah is currently being screened at the Fukuoka Film Festival, the city where it was shot at last year in July. This was one of it's reviews done in the Daily Yomiuri.

Sumo spirit fights on in Asia
(exerpt) But there was one particular movie I had been curious about ever since I saw the list of films to be shown at the festival. Called "Sumolah!" ("Let's Sumo!"), it is a Malaysian-Japanese coproduction. Its director, Afdlin Shauki, is also one of the screenwriters and the leading man. The story follows the life of Ramlee, an indecisive young man who works at a sushi restaurant in Malaysia owned by a Japanese-born man, Honda-san. An eager fan of sumo, Honda encourages his employees to take part in a sumo tournament that is held each year in Malaysia. ...~read more here