If we consider a major Hollywood film, the average budget for a big production would be around $100 million. This would include the average cost of making the movie, which is about $65 million, and then adding the marketing and distribution costs of roughly $35 million.
However, many such as “Avatar” and “How Do You Know?” cost much more, with quite differing results at the box office. Of course, there are also small films that are made on a shoestring budget like “Napoleon Dynamite”, which was made for less than $500,000. The budget does not always reflect the success of the film!