One Cool Group Limited (Chinese: 天下一集團有限公司), is a Hong Kong company founded by actor and film producer Louis Koo in 2013.

[2] One Cool Group engages films business such as financing, production, post-production, distribution and promotion, as well as artist management business and film equipment rental services.

(天下一聲優館) The films produced by the company under One Cool Films and/or One Cool CMC and distributed by One Cool Pictures