I don't know how many Blog movies there are, maybe a few more, but Julie & Julia is a good one and a real story. What a deal to have your Blog project first turn into a book and then a movie.
Seems Julie is a bored government worker and a wanna be writer. She somehow comes upon Blogging as a project to express herself and stay busy. She can't Blog her daily life for fear of being discovered and loosing her job. Instead she decides to cook every recipe in Julia Child's book "Mastering the Art of French Cooking" and Blog it. That's 500 and some recipes in 365 day.
At this point the movie jumps back in time documenting Julia Child's entry into an all men's French cooking school in Paris. Julia goes from cooking school just to keep occupied to the notice that her famous book is being published and everything inbetween.
Julie's success starts with her Blog being mentioned in a New York Times article and goes from there. Two women that start at the beginning and end up with huge success. Cool movie and very well done.