It's available at YesAsia.com. Here's the synopsis:
Directed by Yongyoot Thongkongtoon (The Iron Ladies), the 2009 Thai romance Best of Times interweaves two bittersweet stories of love and memory. Awkward veterinarian Keng (Arak "Pae" Amornsupasiri, Body) never got over his high school crush, Fai (singer Yarinda Bunnag), who ended up marrying and divorcing his best friend. Years later Fai walks into Keng's clinic with a stray dog. Pretending he doesn't remember her, Keng begins to pursue Fai, who hasn't let go of her ex-husband. Finding love again in their golden years, elderly couple Jamrat and Sompit make great efforts to see each other every week, but Sompit's family objects to the relationship and Jamrat is slowly but surely losing his memory.
Best of Times was the top winner at the Star Entertainment Awards, with Yongyoot picking up best director. It also won best film and best screenplay as well as supporting actres and actor, Sunsanee Wattananukul and Krissana Setthatumrong. Susanee also won at the Kom Chad Luek Awards as well as the industry's top honors, the Subhanahongsa Awards.
The English-subtitled Region 3 NTSC disc is distributed by Kam and Ronson.