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Dirty Tiger, Crazy Frog is a 1978 Hong Kong martial arts comedy film directed by Karl Maka, who also wrote the screenplay with Eric Tsang, produced with Sammo Hung and Lau Kar-wing, who both starred in the lead roles. The film was one of two (along with Odd Couple) produced by Gar Bo Motion Picture Company, a company formed by Hung, Maka and Lau created. The film also features cameos from Yuen Biao, Lam Ching-ying and Hsiao Ho. imdb.com