When an Animal Talent Agency has only 48 hours to find the right talent for a psychotic client or face demise, a flamboyant receptionist obsessed with making his dog a star sees an opportunity. He “just” has to convince the mid divorce agent, win the client’s heart and train his pooch to overcome stage fright.
I’ve moved the problem to front – difficult movie star needs a dog. Then moved the hero’s plan next. Then added the conflicts and time constraint. Also, this might just be me, but I tend to remove descriptive words that don’t carry the story, like mid divorce agent – even if the boss being middle-aged and divorced is a primary conflict for the hero, I still don’t think it’s strong enough reason to add in a logline. Last, I assume you mean gay when you say flamboyant which gay imho makes for a cleaner line.
When a difficult movie star needs a dog for a movie, the animal talent agency’s gay receptionist sees his chance to get his pooch into pictures, but he only has two days to convince his boss, win over the movie star, and train his shy pooch.